I have CM10 on mine, and it works really well. So far the only real issues I have come accross are:
1. face unlock doesn't work. Crashes every time I try to set it up.
2. camcorder doesn't work.
3. wifi tethering just itself off second after turning it on, so it's useless. It seem to work for those few seconds, but since it doesn't stay on long enough to get a computer connected to it, i cant be sure.
The secondar issue is occasional jitter of the screen (primaril in the picture gallery)
Also, a few apps (older ones that havent been updated in a while, mainly) aren't real stable, but still work.
Overall, for an "alpha build", it works great