First regarding WoW:Playing pvp is so lagging. Like Wintergrasp... can't really do anything. You've had like 15 years to improve this, but still it's garbage.
Customer service... first you have to guide yourself through 15 menys, that can't help you... and then it takes like ages to get a response.
Also Hearthstone... lots of disconnecting... then you can't log back to the game you were already playing...
And don't get me started on Diablo IV, wich is utter unplayable, due to disconnects. Again customer service doesn't do anyone any good... So i've decided not to spend any more money on any blizzard games/seasons and whatever they try to do to get you to spend money insted of improving their games.