I've seen these tablets all over craigslist and ebay. Besides the bad screen, horrible build quality, no support(no updates unless hacked and rooted), no returns if defective, it's not bad. Just a note I've used these in the past and I'd buy a Archos over any of this chinese garbage any day.
IMHO the Archos looks a lot better, plus the multi-touch capacitive screen is a big bonus. Although the other tablet is known to run flash a bit better than the Archos does. I'm not a big fan of large 10" tablets, so i'm biased on that