I used PRIME for Mac for the first time yesterday (first time using PRIME at all in fact) and it worked absolutely flawlessly - I'm moving from Mainstage that I was never really happy with for running tracks and was reasonably close to pulling the trigger for Ableton before seeing that the Mac version of PRIME was released and it really works well.
One question I have....
When I click the 'Fullscreen' button (the OSX window one), the PRIME window stretches to the full width of the screen but doesn't fill the height. I assumed this was as expected until just seeing the LoopCommunity instagram post where there is an image of PRIME filling the whole screen. How does one get this to happen?!