I dislike the RNG and that we can no longer move whilst casting Aimed shot. I also miss the cleave of Chimera shot. But I don't mind, I've been MM for the entirety of HFC. The problem is that they made 1 spec a melee one, so that leaves me BM with MM as off-spec. I'm not writing MM off though. I'll be a bit miffed if SV ends up the best spec throughout the expansion...
I also highly dislike the longer GCD for the specs, and that they removed kill shot.