It' got a good feel of upgrading the wheel and sending out troops. I liked the Differences between the Boss with the Orge King being a force of nature and the Forest King sending out waves of enemies.
The Wheel and Shop are Cool! My only complaint would be that sometimes the wheel would take a bit longer than most of the spins to stop and that made it a little tough when I needed to push out a bunch of units to defend the base.
Very Good Overall!