Ýes, something is indeed wrong with audio playback.
some sounds work(Volume beep, google now voice search, call), others do not(music, ringtones)
Video playback fails completely. I tested youtube app, mobile site, and MX player
AVRCP 1.3 Is not working either.
On the other hand the ui is really smooth, possibly the best yet, and it seems stable for the little while i played with it.
For those without acces to their (internal) sd card in recovery, go to advanced, terminal command, any location, then enter the command
Code:
mount /dev/block/mmcblk0p11 /sdcard/