Pros:

• Public quests are very cool.
• Quests lead the player around the world well.
• Overall smooth servers.
• Accessible.
• PvP is fun and balanced, giving the level bump to lower players is good.
• Tome of Knowledge is cool.

Cons:

• Feels like WoW in too many ways (and inferior in most of those).
• The classes aren't particularly interesting at the lower levels.
• The game is a system hog. I run Crysis better than I run Warhammer. Not alt-tab friendly (and the game doesn't look that good either, poor anti-aliasing).
• Public quests aren't cool if there is nobody around to do them.
• Minor quibbles like enviornmental interactions (getting stuck), and animations.

I'm having fun and will be playing it for awhile, but as it stands now, I will definately be purchasing Wrath of the Lich King. I kind of feel like Blizzard has ruined me. The gameplay in WoW is so polished now that it's hard to overlook some of the quirks in Warhammer and just enjoy it. I'm liking it more and more the longer I play though (as I begin to forget why WoW is better).