I just got mine a few weeks ago and have used in on 6 dives now, and half of those were to depths of greater than 90 feet. I was using the Atmos AI before I picked this computer up. I am in love with my Epic! First of all, I like having my computer on my wrist. The size of the computer is great too. The natural magnification underwater makes this computer easy to read at depth as well.
I had no problems with my transmitter. It synchronizes automatically once the dive mode is entered. While the software isn't the greatest, it is easier to sync my Epic than it was to sync my Atmos AI for whatever reason.
Overall, I am thrilled with my Epic. Its size and functionality make it a great computer in my opinion.