Overall I like the game, and beat it fairly quickly. I will say I spent a good minuet doublechecking the last level for the elevator. I would suggest adding a 'you won' screen after you cleaned the smiley face. But overall it was sweet and short.
(edit: I also LOVED the fact that the vacuum sounded like a guy talking in a gas mask. don't know if that was on purpose, but it works very well)