It's possible to get completely stuck forcing restart of game - if a mob kills your pet on the only valid escape square (say you're in a map corner) and it drops something.
Eh, it's ok-ish. Not to much to do so waiting for turns is boring, and then there's always some daddy's rich kid who pumps cash into the game to win. That's that problem with pay-to-buff, pay-to-play is better even.
This game is stupidly unfair / not possible. Second level of second difficulty, enemy puts three squads behind trench, you can only do 1. There's no way to win.