Stopped by Darwin Cafe today -- it's on Ritch Street, a little alley between Bryant and Brannan and Zoe and Second. The woman who served me said they opened a week ago.
Had an Americano and a Ricotta and homemade apricot jam baguette sandwich. Both were great. The coffee was De La Paz and was done well -- wasn't bitter or too strong. I know coffee preferences can be hopelessly subjective, but this struck me as done well and on par with Four Barrel (the cafe) or Epicenter, which I like. (And yes, which others may not like...)
The apricot jam was yummy too -- more of a soft spread than sticky jam. I didn't ask where the ricotta or bread came from but everything tasted wonderful. They had a salad menu of around four items and a sandwich menu of around five items. Seating at the bar and possibly at tables (hazy memory at this point; I rushed in and out.) I'll definitely go back.
212 Ritch St, San Francisco, CA 94107