We'd highly recommend Tia's apartment.
The Haight area is very colourful, there was everything you need close by and the bus into the centre was just around the corner. I did feel a little uneasy walking down Haight street at night with the number of drunk and homeless people, it was a little intimidating at times but we didn't have any problems.
Lovely bits and pieces left out for us - really enjoyed the coffee Tia, thank you :) - and very helpful signs around the apartment. The bed was very comfortable, the shower was great, fantastic to have a full kitchen, great wifi.
All you could wish for, a great first experience with AirBnB.