It's weird and I love it. It lags a bit on my laptop and there's a number of bugs that happened when I was dragging the books around. The concept is great. The art is charming.
However, I think mechanics is where the game kinda suffers. The character is slow. The climbing is painful. You can't move side to side while climbing.
Nevertheless, I had a good time while playing. It was laggy and I have no idea why. Maybe my laptop was hot.