It's good, very fun for a while. Good foundation but lacks polish; balance issues and AI weakness limit replayability. If you have any doubt, wait, game is improving rapidly with each patch and will eventually be awesome.
[I, too, would be playing myself right now, but after a couple hours it finally crashed and I decided I could use a break, it is definitely fun. At least, it was for my first several games playing as a melee/adventurer/army-building conquerer - but trying to explore alternative playstyles (caster, particularly) is proving frustrating due to balance issues. I love that there are many ways to play the game, but most of them aren't really viable yet. I may just take a break 'til next patch.]
