Any real review is like a vector basis. It establishes a universe in which you can evaluate the claims. Take this one-star review of a wet-dry vac: "I bought

Any real review is like a vector basis. It establishes a universe in which you can evaluate the claims. Take this one-star review of a wet-dry vac: "I bought this thing specifically to suck out the ash in my fireplace. It got use with some other projects like small wood chips and sawdust before I tackled the fireplace, and it did fine. Then I put it to task. It sucked up maybe 1/5 capacity of dust and just stopped." If the top rated one-star review for this consumer-level vacuum is that the filter immediately clogs when you *SUCK UP ASH FROM A FIREPLACE* then I know hey, this one-star reviewer doesn't understand vacuums. So yeah, as long as you find one guy on Reddit who's really happy with the vacuum and the one-star reviews are stupid, you've got a good product.