Tech reviews on Amazon are useless -- they're a tug o' war between easily-impressed imbeciles who'll five star anything that turns on, and annoying geeky whiners. Then again, there's a kernel of usefulness in the brayings of those losers -- get it, at How It Sucks.
Taking the opposite tack from most ratings portals, Sucks only weighs positive and negative Amazon reviews that actually spell out details of a product's goodness/badness, then issues ratings based solely on its crippling underlying issues. Just select the product type whose flaws you wish to unearth, and you'll see an array of thumbnailed images alongside a red bar; the longer the gadget's bar, the more likely it is you'd gladly trade it for a Discman. To flesh out the suck, text of the pertinent reviews is provided, and another meter indicates how many people've weighed in on a given gizmo -- more opinions reduces the odds that a single misguided reviewer will taint the assessment, a la Richard Roeper's despotic hatchet-job of Jumper.
If you foolishly ignore the masses' warnings, Sucks provides a "Buy It Anyway" link to the Amazon sale page -- after which your only decision'll be to bitch about the battery-indicator LED being too dark to read in sunlight, or..."5/5! It plays my music!"