The first part of the game is a completely technical puzzle. No moves can hurt you, and there are no characters or items. As a mathematician, I found this part of the game deeply enjoyable. Like a Rubik's cube, I realized that each element can be manipulated by a little "dance". These are the important "dances":
(Spoiler - click to show)Going n, e, s, w from the kitchen lowers the floor.
Going e, n, w, s, w from the kitchen raises the floor.
Going in a similar circle around the dining room changes the direction of the bridge. If the foyer is closed, go up twice through the kitchen first.
To go down or up, do a kitchen dance and approach the moving floor from w or e, respectively.
As for the second part, the idea was fun, and the implementation was fun, but the subject matter was not my cup of tea. I found it fun to explore everything, but used a walkthrough once I tried every item.