GamesRadar's reviewed Warhammer Online at 9/10, as you can see here. The site clearly managed to get on a server, something we didn't manage to do last night. They were obviously allowed to register for the game as well. Again...
Its similarities to and improvements on WoW – most especially in PvP – make it the natural next home for anyone either dispossessed by Blizzard’s effort or who has held out from all MMOs in the hope of something a bit meatier. Playing Warhammer Online, it’s easy to forget that this game stems from a hobby so often accused of nerdiness. It shares design values, fiction and certain concepts with the Warhammer tabletop game, but really it’s only the name that binds them. Conan was supposed to be the so-macho MMO, but against this it seems a bit Sealed Knot. WAR is war. The associated intensity of this means it probably won’t pick up anything like the audience WoW has, but it will get a large one. And a very, very satisfied one at that.
Full thing through there.