Fun game, but it sometimes bugs and the day never ends, forcing you to restart. I've had it happen on day 5, day 3, and twice on day 1.
I liked the simple selection of defenders, though I was surprised that I couldn't remove/replace them (unless there is a way and I just couldn't figure it out). It makes it so once the slots are full, you can do nothing but watch, with nothing to spend axes on.