I am on pilot app 1.2.0 (android) and firmware 1.2.8 (P3A).
Far from being perferect, the app happens to crash once or twice on a whole battery flight time (20 minutes).
But, and that's something new to me since I upgraded craft and app, when the app crash it is re-launched automatically, so I'm blinded for less than 10 seconds. And I do not have to power cycle anything to have it working again.
Not the perfect way to behave, but fine so far.
By the way, my tablet is a nexus 7 II that I use only to fly.
Only my experience.
Ciao