The rubric
How we grade
A Graded Home letter is a research grade. It is not a lab score, not an Amazon star average, and not a claim that Jeff Bunch used the product. The math is public. The research date for this set is November 10, 2026.
Specs
How specific and complete is the published spec sheet for one model?
- 3 — One model, with published numbers for the main job.
- 2 — Useful official numbers, and a variant the shopper still has to match.
- 1 — A product family or a search result. Key numbers change by listing, so they stay off this page.
Value
How straightforward is the buy for its tier, once ongoing costs are included?
- 3 — Straightforward for its tier. Generous published features, and no required membership or proprietary detergent.
- 2 — Strong features with an ongoing cost, or a premium bundle.
- 1 — The ongoing cost dominates ownership, or the listing is too broad to judge the tier.
Reviews
Do public review themes agree with the spec sheet?
- 3 — Public write-ups agree with the spec sheet. The complaints are limits the sheet already states.
- 2 — The main job is supported, and at least one recurring complaint should affect the purchase.
- 1 — Themes cannot be tied to a single listing, so the score stays low on purpose.
From points to a letter
Each criterion is 1, 2, or 3. The letter is the sum, out of 9. An A needs a 3 on specs, value, and reviews. Nothing in the current set has a 9. That is the rubric doing its job.
9 · All three criteria at the top of the rubric.
8 · A clear sheet and a record that matches it, with one point off.
7 · A strong pick with a limit you should plan for.
6 · A sound option when the job matches, with more homework on the listing.
4–5 · Usable, with a thin spec sheet, a muddy listing, or a real ownership cost.
3 or below · The published record does not support a higher grade.
Value, without a dollar sign
Associates rules and ordinary honesty both argue against a frozen Amazon price. The value score looks at the tier: whether the published features are generous, and whether ownership adds a membership, proprietary detergent, or bags. Check the button for the price today. A budget mattress can outscore a famous brand on value.
Current grades
Portable Power & Generators
| Grade | Pick | Specs | Value | Reviews | Why |
|---|---|---|---|---|---|
| Research grade B plus | Westinghouse 12,500W Dual Fuel Home Backup Generator | 2/3 | 3/3 | 2/3 | The listing for this ASIN publishes a full watt table, and shoppers still have to separate the WGen9500DF from Westinghouse's CO-sensor model. The feature set is generous for a portable dual-fuel generator. Public comments praise the output and repeat the same limits: noise, weight, and outdoor-only use. |
| Research grade A minus | Jackery Solar Generator 1000 v2 + 200W Panel | 3/3 | 2/3 | 3/3 | Jackery's FAQ names capacity, chemistry, surge, solar hours, and weight for this station, and this bundle includes the 200W panel. The panel puts it in a premium package. Published write-ups argue about runtime math, which is the limit the watt-hour number already states. |
| Research grade B plus | Anker SOLIX C1000 Gen 2 | 3/3 | 2/3 | 2/3 | Anker publishes 1,024Wh, 2,000W, a fast wall charge, and weight for the Gen 2. A panel is extra, and the previous expansion battery is gone. Coverage is still early, and this guide does not pin one ASIN, so the review score stays at 2. |
| Research grade B plus | Jackery Explorer 300 | 2/3 | 3/3 | 2/3 | The original 293.8Wh model on this ASIN is documented down to the port list, and it is easy to confuse with Jackery's newer LiFePO4 Explorer 300. The weight and the simple port set are a straightforward small-load buy. Owners praise the carry and meet the 300W ceiling. |
Robot Vacuums
| Grade | Pick | Specs | Value | Reviews | Why |
|---|---|---|---|---|---|
| Research grade B plus | Roborock 2026 Qrevo S Pro | 3/3 | 2/3 | 2/3 | Roborock publishes suction, mop speed, lift height, dock temperatures, and robot size for the Qrevo S Pro. The heated dock is a full maintenance system. Independent published reviews praise mopping and flag hair pickup, so reviews stay at 2. |
| Research grade B plus | Shark AV2501AE AI Robot Vacuum | 2/3 | 3/3 | 2/3 | Shark's page is specific about LiDAR, the bagless base, HEPA claims, and runtime, and it is a vacuum with no mop and no shared pascal number. Skipping bags is a real ownership saving. Published reviews praise the map and repeat complaints about the app and low clutter. |
| Research grade B | eufy C28 Robot Vacuum and Mop | 2/3 | 2/3 | 2/3 | eufy publishes the roller mop, the five station jobs, and a 15,000 Pa figure. The Amazon listing is not pinned to one ASIN, which holds the spec score to 2. Published reviews support the roller, with tank chores as the recurring work. |
Mattresses
| Grade | Pick | Specs | Value | Reviews | Why |
|---|---|---|---|---|---|
| Research grade B minus | EGOHOME King 14-inch Memory Foam Mattress | 2/3 | 2/3 | 1/3 | Height, size, and an all-foam construction are clear, and the layer stack changes across listings that share the EGOHOME name. It sits in the tall-foam king tier. Review themes cannot be tied to one listing, so sentiment stays at 1. |
| Research grade B | Nectar 12-inch Queen Mattress | 2/3 | 2/3 | 2/3 | The 12-inch queen and Nectar's firm Classic description are stable, with thicker Nectar models easy to mix in. It is a known brand tier above budget foam. Public review themes cluster on firmness and heat, which matches that description. |
| Research grade B minus | Novilla Bliss Queen 12-inch Mattress | 1/3 | 3/3 | 1/3 | Bliss, queen, and 12 inches are the match point, and layer densities are not stable enough to freeze. The value score is for a budget foam queen with no membership and no proprietary detergent. Sentiment stays at 1 until one listing is pinned. |
Home Fitness
| Grade | Pick | Specs | Value | Reviews | Why |
|---|---|---|---|---|---|
| Research grade B minus | NordicTrack T Series Treadmill | 2/3 | 1/3 | 2/3 | Folding, SelectFlex, and iFIT speed control are documented for the series, and deck size and top speed change by model. The membership is a large part of what you pay over time, which keeps value at 1. Reviews praise coached workouts and repeat the subscription complaint. |
| Research grade B | KingSmith WalkingPad | 1/3 | 3/3 | 2/3 | This is a product family, so belt length and top speed stay on the listing. A walking pad without a content subscription is a straightforward buy for its tier. Published comments praise the stored size and flag a short belt for taller walkers. |
| Research grade B minus | UREVO 2-in-1 Walking Pad | 1/3 | 2/3 | 1/3 | UREVO's 2-in-1 name covers several pads, so speed and handle contents are not frozen here. Value depends on the handle actually being in that box. Review themes stay at 1 until the model number is pinned. |
Baby Gear
| Grade | Pick | Specs | Value | Reviews | Why |
|---|---|---|---|---|---|
| Research grade B plus | Momcozy KleanPal Pro Bottle Washer | 3/3 | 2/3 | 2/3 | Momcozy publishes bottle count, size limits, cycle times, and power for the BS03. The tablets are an ongoing cost. Owner questions cluster on bottle fit and detergent, next to praise for combining wash, steam, and dry. |
| Research grade B minus | Baby Brezza Bottle Washer Pro | 1/3 | 2/3 | 2/3 | Cycle times and capacity move between revisions, so they are not frozen and the spec score stays at 1. Brand detergent is an ongoing cost. The grade is for the Bottle Washer Pro job, and the listing title still has to match that name. |
| Research grade B | Philips Avent Bottle Sterilizer and Dryer | 1/3 | 3/3 | 2/3 | Several Avent sterilizers share a name, so bottle count stays on the listing. An electric dryer with no detergent system is a simple buy. Steam sterilizers have a long public record when the bottles go in already washed. |
Questions
Does Graded Home test products?
Graded Home does not hands-on test products. A letter is a research judgment from published specs, price tier, and review themes, scored on November 10, 2026.
Why is there no price on the page?
Amazon prices move. Printing one would leave a stale number on the page, which the Associates program also asks publishers to avoid. Every button opens Amazon for the live price.
Can a B+ be the right thing to buy?
Yes. The letter describes the published record. The quick-pick label describes the job. A B+ generator can be the right whole-home pick beside an A- power station that cannot run the same load.
How do I ask for a grade to be updated?
Email hello@gradedhome.com with the model number and the spec or review theme you think the rubric missed.