I have flashed cofface’s “ZERO bugs” build (8.19) posted by Phani in the CM10.2 thread, post #39, and I can confirm the following:
It contains file manager, Apollo music player and a full reboot menu. It doesn’t contain fm radio but that’s ok, since everything else seems to work just fine.
It seems 100% stable, smooth and fast, good battery life and all in all trustworthy for daily use (no bootloops, fc’s or the similar).
However, it lacks several customization options like status bar transparency or clock position on the status bar etc. which I regard as of minor importance.
So, I recommend MI2 users to try this build for a safe android 4.3 experience, while waiting for an more complete AOSP build.