I have played for...several hours.
This is a production ready game that can just be shipped out. Superb game! Liked the procedural floors, but they all worked and had no glitches. The difficulty was pretty good. Loot system, mobs, puzzles, bosses were all fantastic.
I didn't finish though, got to lvl 14, just after the Annihilator. I don't suppose there was much left to go but I didn't have any more time.
If there's anything to complain about, I'd say that it's too long for jam game, but that's not really a complaint. THe variety was there enough to keep me trying one more floor, one more respawn.
Am so impressed!