Personally I think it's the best xpac since Wrath of the Lich King. It is very different and if you've not played for a while it'll take some getting used too, but the new features like phasing and level matching in zones is great. There is no "starting zone" and the mobs just adapt to your level.
I still play my PS4, though not much at the moment since I'm waiting for BF1 / travelling around for work makes it hard. I run WoW on a 3 year old MacBook so it's easy to play on the road.