Too simple even for my taste, the game needs a bit more to it. I can see the strategy element, but it requires too much micro late-game for someone like me to enjoy without many commands that simplify things.
Oh, and game-breaking bug. If you attack something more than once and/or when your troops are low and/or if you GET attacked by far superior numbers, your numbers go negative. Once negative, they multiply quickly and cannot be made positive again.