Well it certainly kicks my maps' A$$es. I think it's really good. Only real problems I had with it was that some expansions' mineral line-up should be placed better so all of them can be mined from. There isn't much gas either so it might favor terran over zerg. And maybe a little bit more room at main base to build. Oh, and those mini walls by the ramp favor terran because they can just place tanks behind it and attack everything leaving the base. Those are just some balance issues. The map design is good.
