The room has its own entrance, but is part of a bigger house. The host, Grace, lives in that house and tipicaly has several guests. So you will share some common rooms, like kitchen and bathroom. Grace is very well organized and always very helpful. The area is quite central e. g. good to reach parts of Stanford University. Shopping areas are also quick to reach, took me about 30 minutes by food.
Grace also let's you rent a bike, reducing expected time to a few minutes.