We had a good time staying at Joshua's place. We were grateful for the added extras after a late arrival such as coffee (Nespresso machine), fruit and packets of breakfast oats. The room was comfortable and there is a nice view out the back window to an outdoor patio area. There are great black and white photographs hanging on the walls, all taken by Joshua. Although the upstairs area of the house is not part of the deal, Joshua was fine to let us use the kitchen. Portola is an interesting area with a mix of people from all sorts of backgrounds.
Travelling into the city M-F is quite easy and fast using the 9R express bus from San Bruno Ave (10-minute walk). Make sure you download the Muni app on your phone and buy the new $5 day-pass for unlimited rides around town. Uber is also reasonable. About $22 to the airport and the same down to Fisherman's Wharf. For a very good local breakfast, we'd suggest you give Breakfast at Tiffany's a miss and instead go to J. Georgie's Donuts and Hamburgers across the road. They've been there for 50 years, it's half the price and the food is better. Make sure you rent bikes and do the Golden Gate Bridge ride down to Sausalito. Then take a ferry back to Fisherman's Wharf. It was a trip highlight. Book the bike online for a discount at San Francisco Bicycle Rentals (425 Jefferson St). They were excellent to deal with.