I had a very good stay at Brenda's apartment. The place was neat and clean and looked exactly like the pictures but more beautiful.
She had already kept a map for me and had a list of places that I could see during my stay.
The neighbourhood Sanchez is also near to a lot of sites from Muni (the local subway trolley) for instance the mission street, castro, painted ladies houses, haight and ashburry neighbourhood etc. Almost all of them can be accessed on foot as well that is if one loves to walk otherwise you can always take a bus from nearby church or market street.