I'm kinda enjoying this game. I make a little party and then send them off to kill thousands of monsters while I'm at work. Seems to be going quite well so far and I feel like the game is slowly speeding up as I progress further. I like that my first run felt like an accomplishment and my second felt like I was improving. I'm now on my third play through and still having fun.
After each play through I've unlocked a few new classes. Right now my party consists of a necromancer, pyromancer, electromancer and a ninja. I don't think it's a great party composition having three mages but it's just an idle game so I'm not too worried about it. Besides the necromancer just makes lots of distracting fodder to replace the need for a tank.
I'm gonna keep playing and at least see what other classes unlock before packing this game up.