https://www.youtube.com/watch?v=hJkBlqLJLWA
Seriously tiny, perhaps too much so for me. But he's truly made every cubic inch count. A single minimalist could definitely make this work.
For me the biggest "no" of the space is the window right at sidewalk level. That makes security a major concern, at least for me. Especially in the summer when I would want to leave a window open overnight. (I suppose an optimist would say "yeah, but if the building is on fire he can get out!" although what optimist thinks about the positive side of what happens when the building catches fire...)