I love how the camera changes view between the rooms. Sometimes it is a bit problematic with the new viewpoint being odd. There was some larger rooms where I wanted to see things from different viewpoint, so maybe there could have been some transitions inside the rooms?
Sounds and music follow the game action very nicely.
The lines on the floor are a game saving feature! With the barren walls and floors and the viewpoint changes between the rooms, you really need something to guide the way.