In hindsight, I hate Cata. Not necessarily for its content being _that_ bad, but for going in a different direction (IMO) than what the 3 previous releases had. This is the stuff you expect to hear:
- killed off lots of content (1/3rd size Sunken Temple??? nice quests)
- destroyed large parts of the world and replaced it with worse versions (Barrens, Thousand Needles etc)
- Underwater zone (no, the game does not work with 3D positioning)
- Ugly stone/cave zone
- Ugly Firelands hub (and I didn't like many of the quests)
But most importantly (IMO) is that it killed a big chunk of the meta-game and that has just gotten worse and worse.
Locking in talents at level 10 that used to be selectable, having to fill the whole tree - generally limiting your ability to tune and modify your character. Trying to outwit the developers at Blizzard by finding that combination of gear and talents and whatnot that produces an effect that gives you an unintended advantage; the meta-game played against Blizzard by numbercrunchers and creative players.
That is all gone now. There are no surprises, no hidden depths. There is nothing to turn to when you have had enough instances and raids and monsters for the day. There is no point thinking you are smarter than the devs. Because they couldn't be arsed with balancing so many options and variables that they killed them off. And that, IMVNSHO, has been all the worse for the game.
(But if this is of no interest to you then you might have a better game now.)