Ask HN: Coffee Shop / Third Places Reviews Site?

I'm a web designer/programmer who spends a lot of time at coffee shops, donut shops, hotel lobbies and other third places: https://en.wikipedia.org/wiki/Third_place

Do HN'ers know of a site that show reviews of third places for the freelancer, traveling or pre-ramen startup set? User-supplied reviews, no paid listing non-sense. Just good, local knowledge to find great places to hang out and code.

Important details would be:

  * Power outlets / hook ups
  * Seating (good for singles or the entire team?)
  * WiFi (fast, consistent - or slow with lots of drops?)
  * Coffee / Food
  * People (friendly staff? are other patrons friendly and open-minded?)