Fun game, I only did a couple of runs but I keep running into new mechanics and, judging by the screenshots, I haven't even unlocked half of them yet. I honestly find it hard to rate a game that has so much going on, but I can definitely see people getting addicted to the gameplay loop.
The main mechanic around which everything else seems to revolve around is the combat and I'm happy to say it's really fun and it remains rather varied since you generate a random party each time.
The "souls" I encountered are all animated pretty well, but their sprites can be rather inconsistent in terms of detail and anatomy. Maybe that's intended but I personally believe it's a little distracting.