I have just tried out the Mac early access. In short, I am impressed!
I feared the worst and there are still fears but I think that I will be happy to stay with WGT after flash meets its maker.
Fears to be overcome are:
Getting used to the very smooth but slightly differently timed meter
Getting used to the new and scary putting dots
Not having a reverse view camera and sometimes the mini hole view didn't appear on a couple of holes
Not being able to zoom in when opponent is shooting
The graphics are different - no worse nor better but just different
Positives
Ball tracking feature which shows you where your ball is in flight from the tee rather than waiting until it comes into view
The chat is good although my opponent's chats all came back 6 times
At full resolution the full screen is full and pretty sharp
Finally
Thanks WGT, it's not your fault that flash is going and your physics remain superb. People who complain about the physics don't seem to understand that in 99% of cases they are at fault not the machine.