scook
I have not tested it because I stay current. I have tested rollback several times though.
Same here. Rollback is simple and reliable, although I've never needed to do it permanently, only for testing.
Users shouldn't be scared by the people who come on to forums with problems immediately after an update. A lot of times it's pilot error from not fully understanding a function, or not doing something like a reset. In the rare case where a bug is introduced (e.g., fixing one control bar issue forced the user-definable buttons to the right no matter where you tried to put them), you can roll back. In my case, I kept the buttons to the right anyway, so I didn't care.
I would recommend downloading updates when they appear and trying them out, because so far no one has reported rollback problems.