I had to admit that I was at first confused on what to do in the 1st room, did not occur to me that the boxes had physics. Eventually I got the hang of it and pretty much breezed through the game. There was one room that had a very difficult solution and I almost convinced myself that it was impossible, but it turns out that I was just being dumb. However, I also felt that some of the puzzles had some unintended solutions that I just stumbled across. In the 3rd room for example, I found a ledge against a window that allowed me to walk towards the door. The solution to the last room was a bit obtuse and I didn't really understand how I got to it.
With that being said, I saw the game to the end and had a decent experience. I didn't really feel the games intended theme and it could be improved upon.