That's not my experience...
I upgraded over CM10 and on every boot I'd get an error about some app (don't recall which one) but when I opened Play Store, it would open for about a half second, then close without an error. I cleared cache and data for Play Store and same thing. So I factory reset and flashed the rom again and then Play store worked.
My impression is that's it's slow, recent apps doesn't work all the time and if the roms been up for awhile (~hour or more), I can't get into settings. I see an empty settings window that never completely loads. I'll give it awhile and try a newer build.
Regarding battery life, I had about -20 ma battery so I turned off location in settings. (I wasn't able to get into settings until I rebooted first.
) Then my battery use was higher, closer to -50 ma so again I had to reboot first, turned on location services and was close to -20 ma again. (I think it's time to flash my A6 chip again.)
FWIW, the original 10.1 build works much better for me.