Tried it out in arcade mode and got to floor 8. It's pretty good, but it's hard when you need to target a single monster (like Rift spawners, Guardians, and kill in order challenges)
My run was ended, because a Rift was being protected by a Guardian, and that Guardian was being protected by another Guardian.
Edit: Not 100% sure a Guardian was being protected by another Guardian. There was too many monsters on screen, but it looked like it.