A nice refresh on a great but ageing game. The community is still prevalent with the addition of cross-realm zoning.
I agree that WoW should be free to play or at least cheaper than the current pricing model to attract new players. The addition of cross-realm zones has made some very lonely places seem populated again, so this is nice feature.
Overall, I've always enjoyed playing WoW and this expansion added a new lease of life to the mother of all MMORPGs. I like to play other games but always find myself dipping back in to WoW and expansions offer a great reason to do this.