Visuals and music were really cool and the game wasn't difficult because of the simple patterns and a lot of heart drops. Only the dialogue UI was lacking.
The shotgun didn't work properly, shooting and reloading delay was way too long. The books scattered around were annoying because they had collisions instead of being just decorations.
And there was no end to this game; I went from 1/2 to 2/2 to 2/2 to 2/2. And it was hard to navigate because all rooms looked the same and there was no map or indicator where to go. But other than that it was pretty good.