I found the apartment overall to be as advertised and a good deal for the money.
One of the key concerns might be the transient population in San Francisco, but I was comfortable with the neighborhood even at night. The location is probably the highlight, just two blocks from restaurants/bars on Polk Street and easy to get down hill to the water front/financial district.
The building is older but that's to be expected. Amenities are no frills but should accommodate all basic needs. It was very clean on arrival. Very good value for money.