I play a Combat Sentinel and my observations are from a strictly PVE end-game perspective.
I agree that Combat has far too much RNG influencing ability use and can result in you "mashing buttons like a coked-out ferret" to maximize dps. It's liveable, but I'd like to see the RNG factor reduced in some small way.
I agree entirely, the beauty of Combat pre 2.0 was a fluid rotation. Related: is the reoccurence of Alacrity buffed MS a bug or change by design?