I highly recommend staying at Mika's. The amenities are are fantastic and the neighborhood is welcoming. The value for the price is outstanding.
The guest(s) have the second floor to themselves, including a nice bathroom/shower. The living space is very comfortable and cozy, while still being newly furnished. Mika provides fresh sheets, blankets, pillows, towels...
The location is in the beautiful little hamlet of Montclair. It is very suburban. The house is just a few minutes walking from a number of restaurants, supermarkets, and parks.
If you need to commute into San Francisco, transportation takes a while, but it is actually quite convenient. The CB transbay bus has a stop 2 minutes by foot away from Mika's. This bus makes about 4 or 5 trips in the morning to the SF transbay terminal, and 4 or 5 from the terminal back eastward in the evening after work. As long as you get one of these buses, your life is very easy. Otherwise you can take a BART train across the bay to 12th Street in Oakland, and then take the 33 bus to Montclair. This path is also relatively simple, but takes a bit longer.
Mika is super friendly and welcoming. She is a world traveler herself, and understands what kind of help travelers need to flourish in a new setting.