Problems I had so far:
1. no launcher
2. no connection in google play
3. can't move apps to sd
4. video play issues (youtube, internal video player, ...)
5. browser lag
6. unstable with enabled ART
Solutions that worked for me:
1. and 2. install rom after full wipes and then install gapps from here
https://drive.google.com/folderview?...p=sharing#list
3. Using Link2Int from here
http://www.modaco.co...2/?hl= link2int but you should check "Use external SD as primary' in Storage options and update Link2SD on google play after flashing zip (one in zip is not 4.4 compatible)
4. fixed in 20131212 nightly
5. use Opera and wait for fix
6. stay on dalvik and wait for fix
