I went to Four Barrel Coffee in Mission District, San Francisco.  Four Barrel is one my favorite coffee in SF city.  It is one of the major coffee brands representing San Francisco (Blue Bottle, Ritual, Four Barrel, etc.)

This is actually my first time visiting the store.  The interior is pretty well designed.  The ceiling is high and it is pretty cozy.  This place is highly recommended.

The store is located on Valencia Street between 14 St and 15 St.  It gets pretty crowded so some patience might be required.

Address: 375 Valencia Street, San Francisco, CA