I was having a great time with the game, but didn't think it was anything special.
And then I got to level 17. That got me to stand up and go "THAT WAS GENIUS!" out loud. I think that one level alone bumped the game up by a lot for me, hahaha.
Very very solid game overall! The only thing I really had an issue with was that there's no destruction effect for when you hit stuff with the fireball, but otherwise? it's great!