Excellent choice. It was extremely comfortable and as a solo female traveller I felt very safe.
My tip. I used the mune app to buy transport tickets and made the most of th 28 bus to the city, Golden Gate Park and Bridge and Ocean Beach with 28/5 buses. However if I had used the 28 to go a few stops in the other direction I would have found a shopping center with Wholefoods, that would have been really handy. Only spotted it on the way to the Airport.