I'm not having anywhere near as much fun as I was in Cata.
(this is mainly about pvp, not claiming glad/r1)
My personal gripes are:
Malefic Grasp - Having to channel for damage sucks. (I don't mind having some dot pressure removed, don't know how to balance this without shadowbolts lol)
Coil - Not being baseline.
No 'stance dancing' between Fel and Demon armor.
Kil'Jaedans cunning - Best talent in the 90 section but I don't want to use another bind for a stop-casting macro.
Haunt - Using Soul shards is weird, much preferred when it had a CD.
No self healing outside of talents - I would gladly give up Dark Regen for Haunt and old Siphon Life/Corruption.
Aura Mastery/Unending Resolve and Unbound Will are nice without the amount of burst and silences in game, but meh, I don't know.
Pets seem squishy.
Soulburn SoulSwap isn't needed.
I miss glyphed Shadowflame for the 70% snare.
Well, I think that's about it.