Sophias place was perfect for our family to explore San Francisco. My husband, our two children (4 and 2) and I stayed there for 6 nights and we had a very good time. Checking in was really easy and Sophia was great to communicate with. She always answered very quick and had some good recommendations for us. She had even put some croissants, fresh fruit, coffee, milk, water and snacks for us in the apartment.
The place is not big, but absolutely sufficient, and very clean. The kids loved sleeping in the bunk beds.
We drove into the city by car and it took us only 20 - 30 minutes (depending on where you want to go). Also parking in San Francisco was no problem - the hardest part was to park the car around the apartment in the evenings. But we always found a spot somewhere. ;-)
We would stay there again anytime!