TB is nice, but it gets annoying having to restore each app separately. I tried TWRP nandoid, and when I did a factory reset, it messed up because of permission issues.
I used CWM recovery on my Nook Tablet, and it always worked for nandroid backups. Make an app+data backup, move the folder over to your computer, flash your rom, restore all your apps+data in CWM.
Sent from my Nexus 7 using xda app-developers app
Nook Tablet 8GB