I have it.
It's great but horribly flawed.
The gameplay is pure BB living rulebook and so, if you know the miniatures game, the PC version is identical minus the painting and trying to work out the dice yourself.
However; the game is very buggy and each patch breaks new things. Multiplayer is a bit of a lottery, sometimes you can connect, sometimes you can't. A recent patch broke secret weapons (they don't get sent off automatically any more) and the random number generator isn't nearly as random as it should be. It is fun though, my coach ID is IainC if anyone fancies a go.