like everything, there are 2 sides to the story.
Millennials and those living in NYC or SF love them for the winning combo of affordability plus privacy. Developers love them because they collect more rent per square foot (versus 2 or 3 bedroom apt’s).
Cities on the other hand have witnessed generation after generation move to the suburbs when it’s time to raise children, leaving behind a vacuum of un-needed urban housing…which drops in value…turns into slums…is a lasting headache.
Boston has approved development for micro-apartment units in the hundreds. Considering there’s 42 million Millenials still living at home nationally, I think Boston’s city planners are thinking of something different.