I tried my A10 in the field last night for the first time, and both the taping experience and the result were pretty good.
The only thing that really bugs me about the A10-app combo, is that the stop and pause buttons are way too close to the bottom of the screen where I swipe up to close the app. I am worried I might accidentally stop or pause the recording.
I suggested an app lock feature that disables the app stop and pause buttons in my app store review. I hope some of you could do the same, and see if we could get Sony to fix it :-)
-colargol