CyanogenMod 10.1 (4.2.1)
There are currently no threads on here with the cyanogenMod 10.1 Nightlies so ill give you the link for you to try Android 4.2.1;
http://get.cm/?device=n7100
I found it about a week ago and tried it for a few days and the main glitch which I noticed was it would sometimes crash after you made a phone call. But thats all I noticed.
I am off course not the maker of this rom so don't thank me for it lol. Credit goes to the team behind the project.
The link goes straight to the download page of the rom so just choose the latest and it will be the usuall to intall ie. 1. Cwm 2. Factory reset 3. Wipe cache 4. Wipe dalvik cache. Enjoy!
I am not reaponsible if this bricks your phone as it wont if you follow the steps correctly. If you post all the issues you are having with the rom ill see about getting them to the team responsible for develpment to help iron out the bugs.