Use and love Pkgbackup...but...for this JB, I ended not using my backup because a number of my numerous tweaks aren't 5.0+ ready yet and my first crack after JB'ing 5.0.1 and restoring from Pkgbackup resulted in a very unstable device.
By process of elimination, I got rid of the tweaks that aren't ready yet (like LiveClock) by starting with a fresh 5.0.1 load, running redsn0w again, and then putting back tweaks one at a time.
Certainly a pain and it defeats the purpose of backing up but I had a ton of tweaks and I'd say at least 10% of what I was using doesn't work with 5.0.1 yet.
Besides LiveClock you can leave off SBSchedule which is killing me.