I've just bought one of these tablets (pre owned).
Tabtech A816 now with added Bluetooth - 8" 2.3 Gingerbread - Powerful Android Tablet PC 1.2GHz - Samsung S5PV210 - Compatable with Flash 10.3 - SKYPE free voice calls - BBC iPlayer - Youtube - HDMI output
At first, I didn't like the resistive screen, as I was used to an HTC Desire, but I bought one of those foam tipped stylus's and that has improved things 100%.
It's an 8" screen, which is much more manageable than the larger ones, and I got a case from ebay, to add some protection.
Mine didn't come with any instructions, but judging by comments elsewhere, they're not to comprehensive anyway, and anyone used to an Android phone, shouldn't have too many problems.
I've just spent a couple of days, setting it up to my liking, and it's handled everything I've thrown at it (except Swype) as the screen resolution is'nt supported.
Overall, I think it's a good buy, especially as a starter tablet. A few apps don't yet support tablets (Splash ID Safe being one) but hopefully that will change.
I'm happy to help anyone with setting up if necessary.