My sister lives in NY and she recently moved to a studio apt with her husband. It's 400 sq ft. She has a loft which literally fits her bed and nothing else. Now my house is pretty tiny, but it's 3 bed two bath. I don't know how she does it!
The only time that I lived in a studio was my dorm room in college. It was super tiny, but it's college so you deal with it. As a grown up, I want more space and privacy.
Have you ever lived in a studio? Did you like it?