I have had a few "not responding" errors which required force closing so far :/ Not imported or created a wallet yet either which is not terribly confidence-inspiring...
How do I run this .app with debug flags (I knew how to do that on Ubuntu from terminal but this app on OSX I am not sure how to set those flags as I run it) then I can perhaps upload some logs... I think it is somethign to do with applescripts, but Im pretty new to OSX.
It did sync overnight no problem (not sure how long it took though).