well the guys in my residence all went to EBgames, got this game, and we are having like Lan games and shit, it's pretty damn fun. It requires a better computer than you would need for something like WCIII, but in msot cases you can play it fine.
The actual game is pretty solid. Three are 5 races (and when a new expansion is released in October, it will be 7 races). Some people complain about imbalances, but at this point, we all suck so much we don't care. So far online is nothing special, but it gets the job done. In tersm of actual gameplay, it is pretty cool. No recource gatherers, just requisition point gained from held locations. If you need a better/more indepth description, just ask. Is it worth buying? I bought it, and so far I haven't regretted it.