Pros:
+Hard but fair, the game requires you to fully utilize its mechanics in order to succeed which makes the experience very engaging. Grinding is not a thing in this game.
+The systems are satisfying to use. Collecting and fusing demons is fun. The press turn system is simple but works.

Cons:
-Inexistent story
-The presentation has its charm but is overall very lacking. Most of the game is spent running in empty corridors.
-Dungeon traversal is tedious and boring