Played 2, lost 2 as a marauder.
Shame the second one was the Makeb arena, which dropped me to 0.1 FPS despite me having a GTX 770, FX-8120, 8GBs of RAM and an SSD. How the hell they STILL haven't bothered to fix the frame rate drops there is beyond me.
Oh, and the Makeb one had a guy in full 186s. Gear check BioWare.. please