So I played through story mode and got about 650 points. I bought a lot of upgrades and started endless city mode. I got bored after about 6 minutes and went to grab a snack, and when I came back about 15 minutes later my flock was still going strong with no supervision.
It's a good game. My only complaint is that on the second level set I found the computer frequently getting lucky and one-shotting me on levels that required more than one shot on my part.
This game is very good at what it does, but it doesn't try to do nearly enough. It needs things like castable abilities that require you to match resources to use and a larger playing field. 3/5.
So I finished the game a while before they added badges, but it's not giving me any of the badges even after I load the saved game, and I already have 360 stars.
I didn't like my setup, so I felt I needed to start a new game. Not a huge deal, but I don't think it's ideal. So I restarted, but it kept my city goals, so I can't get the rewards again.