Just installed Alpha0 today, gotta say I'm loving it. Everything is super smooth and a lot nicer than gingerbread (because it's actually made for tablets). The only problem I've had so far is instant reboot when I try to close some apps, one being Dolphin Browser Mini, which I use all the time. It only happens when I exit via the Menu button press > exit button though, so it's all good, I can just avoid that. Other than that issue it's extremely stable considering it's not even alpha 1 yet.
Edit: My wifi on the tablet acually did cut out once today like it did a lot in cm7, but it defiantly is a HUGE improvement over cm7 WiFi. That alone is reason enough to use this instead of cm7 on a daily basis for me.
Cool, I was reading Dolphin had some issues with this build.
The fact that they have released the source should mean the fixes arrive a bit quicker too.