It’s almost perfect. I hadn’t played WoW since launch, but playing The Burning Crusade in beta had me reloading my old account and now I’m hopelessly hooked. Everything is firing on all cylinders for Blizzard, pretty much. If anything, the high quality of the new content is a problem because it puts the old zones to shame. Someone is going to have to go back and clean up the quests and instances, or this could seriously be a problem in the long run.
You can read the full thing here.
http://www.firingsquad.com/games/burnin ... de_review/