I played with one for a little at best buy and I was actually quite impressed. The device felt solid, not cheap. And the interface was really smooth. And even though the screen wasn't super high res it looked really nice with much better colors than my nexus 7. I also like the idea of having a stylus for note taking that might actually be able to replace pen and paper.
I wouldn't buy it now though. Wait at least until we see what the next nexus 7 has to offer and also wait for the inevitable price drop.