This game is awesome. I have had the privilage of helping as a game tester for their updates.
You can expect content updates the Dev's are active and passionate.
I can sit down and play this game for hours on end.
The recent patch completely revamped the ingame research process it is way more smooth and intuitive.
An interesting mix of FPS and TD that doesn't work because I just want to play an FPS or a TD, not both at the same time. The FPS elements just get in the way because you have very little effect on the enemies and so rely on your towers, but because you are in FPS mode it's difficult to help them because your not in top-down TD mode. A reasonable attempt at something new that doesn't quite work.