I grew up in one, my parents currently live in a different one. Both had major livability issues: - No privacy (too much open plan space) - very expensive to h

I grew up in one, my parents currently live in a different one. Both had major livability issues: - No privacy (too much open plan space) - very expensive to heat and cool due to poor insulation - poor construction (this is both a design issue and a quality issue) - ugly (as the article contends, this is a quality-of-life issue)