This is the third or so version of it and I think that it is balanced. It's good for 2v2. I like playing 1v1 of four player maps but I'm not sure it this is a good one for it. I tried to make a symmetrical map that wasn't the same for every player. Anyway I think that I'll be changing a lot of it up later, so if this gets accepted then I'll post that too.
Preview doesn't completely show the map--very nice terrain design and mineral placement. Definitely worth a shot!