Any reasons to not upgrade from 2.2.86 to VSTL3?

I am relatively happily using 2.2.86 on tour (a few issues, but on the whole a very useful piece of software). I use it for backing tracks, live VSTs and DMX. I plan to use some video in future too.

I want the most stable, effective version possible (hence staying on 2.2.86 at the moment), but is the upgrade to 3 significantly different? Any pros/cons from upgraders?