I think you guys are being a little too harsh on an obscure Chinese tablet. Remember that only two or three years ago we could barely even get N64 and PS1 running on these things. K1 would be nice, but Tegra 4 is still pretty good considering.
To me, this is what Shield Tablet should have been. It may sound dumb, but I'll take physical buttons over a stronger chipset any day. Without them, it's barely a game system. Even if it means sacrificing GameCube emulation, at least it will be cheaper and more efficient that way. Maybe it's different for me since the last device I got was my JXD S7300b last year.
As for the size, I do agree that five inches would have been nice, but then again we already have our five-inch Tegra 4 handheld, the Shield. Plus the W1 is on its way and looks promising, even though I'm not personally that interested in the phone side.