Well I enjoy tactics games but after beating all nine towers the game feels kinda slow, when you had less units at the beginning it was more enjoyable, but that's a personal thing. Getting new troops every mission made the game more enjoyable, the AI was pretty and clumping all your units up made the game pretty easy.
Some small things are that the enemy turns take long when there's no enemies left and I'm just trying to get to their tower, sometimes the idle animations have clipped pixels near their edges, and the terrain in general is a bit bland after playing it for a while. The map being an image of a city was a bit immersion breaking but I don't doubt it's just a placeholder.
That being said I still enjoyed the game enough to beat it all, the graphics and music are fun and games like this are pretty fun.
Looking forward to seeing new maps, enemies, and gameplay mechanics if there are more to come.