Very fun! Played one run so far; got to floor 10. I agree with a previous reviewer that the respawn rate seems really high. However, after changing my strategy to just immediately go down a floor when I saw a staircase, this was less of an issue. I tend to like to clear floors, but it seems like this game wasn't designed for that.
The controller support is great! I do wish it had Playstation button labels, but it's not a huge deal.