This is a quintessential Mission dive bar. Get Tecate & Pabst in the can for cheap (I think it was $2.50) or step up to a quality beer from the tap such as Speakeasy. They have a full bar that is good as well.
All walks of life frequent this bar: Mission hipsters, leather bikers, the cleaner cut sports fans, guys, chicks, straight, gay, etc. I love the fireplace on cold, foggy, summer nights. The age range is also varied, from twenty-something to mid forties.
Ive lived in the Mission for 5 years and as 16th street gets busier, this bar has become more and more popular. Sometimes the place is so packed you cant get a seat whereas before it was never difficult.
Parking here is difficult if not impossible. Take public transit or, if you must drive, park at the Hoff garage (at 16th).
Pros: Great Neighborhood, Inexpensive, Laid Back
Cons: Sometimes Packed