ICS+ on Atrix has come a long way. Most apps work fine, except a few minor issues. (I'm still testing it out...still checking if TiBu might've messed up some apps upon restoring them. I'll respond with my issues, when I've narrowed them down.)
Otherwise, I'm surprised to say this is becoming daily-driver material. My phone doesn't run super hot (which it would before with ICS, even with the screen off), battery life is much more like that of Gingerbread roms for this phone, and most apps work perfectly as expected!
What I would like to see, which I know would be far in the future if considered, is implementation of the ROM Control feature from the AOKP project. Developers for other phones have gotten permission to use ROM Control in their roms, so I thought this could be implemented in the future with this one.
I am just missing the huge list of advanced settings that CM7 provided under "CyanogenMod/CM/MROM Settings". It seems to me that a few bits and pieces of those old settings are now scattered across the Settings app in CM9, but I don't think all of them are there. Please correct me if I am wrong...
I checked, and there's definitely something missing...Where's the setting to change the "AT&T" carrier text to a custom message?