Worth a play.
Enjoyable enough to start off with but after a while it kind of becomes a chore to play.
I completed it after 2 tries when you first released it and completing it again just now seemed rather boring...
YOu'll need to work hard to keep it interesting when you release the full game, but I hope you manage to pull it off.
Try to have some stuff in there that actually forces you to develop tactics and stuff that makes you approach the game in a different way.
Good luck!
Bez