I bought one of the original 16GB Nexus 7s; the battery life sucks; the responsiveness made my iPhone 3GS running iOS 5 look good. I commonly tell those who ask that the Nexus 7 is one of the worst technology purchases I’ve made in the last ten years (the worst before that would have been the Compaq iPaq in 2001; it didn’t even run Linux very well, although that ran better than WinCE at the time). I use my iPhone in preference to the Nexus 7 for just about everything. I bought a Kobo mini for $50 because the Nexus 7 wasn’t even a good epub reader, and that’s having tried four or five different ebook readers on the Nexus 7.
This is anecdotal, but I am not sure whether I’ll ever buy another Android product—regardless of manufacturer—and I say that despite feeling the need to stay on top of available technology from a friend/family recommendation perspective. (That, and I do like gadgets, but I'm much less willing to put up with crap these days.)