I reall liked the idea that with each level finished some of the burdens of your previous life lifted and you could do bigger jumps. Speaking of which, the jump mechanics really could be improved somewhat. I had quite some difficulties getting up the ladder at first, and in the bathroom section the drawers' collision areas should continue somewhat, when you take half a step too far towards the tub you fall down again.
It was also unclear when you could double-jump which seemed to be something that only worked in very specific places, and especially not where I expected it most, getting from the sink to the exit...
These technical details aside, the level design was good.
One thing that really irritated me was "j" as a choice for the action button on the keyboard. Why not "e" or something so I could use arrow keys for movement and have the other hand for jumping and interacting?