YELP FAVES:

• Location: It's located in the beautiful 16th and Valencia area. Easy access to anyone from anywhere. Tons to do around, bars, food, shopping, reading, art...everything.
• Cheap Tecate and probably the only bar in San Francisco with aggressive girls (not cougars).
• It's a dive but has every walk of life you could think of. I always end up here on a Sat night. I would recommend leaving before close if you want to catch a cab.
• The place was cool -- mostly chill people there. When you immediately walk in there's the bar and some tables along the wall that you can hang out around. At the end of a bar is a pool table and on the other side a decent sized room with more seating and a dance floor.
• This place is the ultimate dive bar. The bathrooms are gross and the beer is cheap.
• I have met some really awesome people here and also gotten into some trouble, I wont go in details as my case is still pending.