“San Francisco also fared poorly in the safety and affordability categories, but it was tops in quality of life among all cities, which helped it achieve its overall ranking of No. 16. The city’s tech rival to the north, Seattle, fared far better. Seattle came in second overall with top rankings in both education and economy.” From: Top US cities to live: San Francisco can’t even beat Omaha in study – SFGate
So, we don’t learn anything truly new here. San Francisco is a fine city to live in — if you’re really fucking rich.