8/10
Pros
Pandaria is a wonderful land, polished and full of different landscapes, a lot of secrets worth exploring.
Very good endgame content, the raids were extremely good, only ToT suffered for a terrible difficulty curve (Horridon was much harder than the following bosses, twin consorts were a laugh) but all in all the experience was great, both thematically and lore-wise.
Good non-raid, high level options (challenge modes)
Scenarios
Wrathion legendary quest.
Cons
An overwhelming amount of daily quests at the beginning of the expansion, for many it was the nail to the coffin
The questing experience, while good had some serious issues with mood whiplash (we have witnessed a terrible battle which has prevented the reincarnation of one of the 4 gods of this land and awakened a terrible monster which feeds in our doubt? Whatever, let's leave this issue to a dungeon (where we kill the possessed high priestess, btw) and let's go have fun with killing humanoid vegetable-stealing rabbits.)
Siege of Orgrimmar will last too long.
Many good ideas from Cataclism have not been improved.
All in all a very good expansion, sadly it comes in a very old game, with people quitting it every day. Not as good as Wrath (a solid 9 for me) but better than Cataclism and TBC for sure.