This room was perfect for my needs. Both the room and adjoining bathroom were exceptionally clean. The kitchen has everything you need in terms of utensils, microwave, fridge etc. The location itself is a 10 minute walk from the 'Colma' BART station which gets you into downtown San Francisco in about 25 mins (cost $3.60 each way). Trains run about every 10 mins. This BART line also services SFO airport, and takes about 30 minutes door to door. This AirBnb is a great option if you want something cheaper than the options downtown, while also being able to easily access dowtown and the airport by public transport.
Note: the location is beside a car wash facility, however there wasn't any noise coming from it at night, so it didn't affect me in any way.
I would stay here again if I am back in San Francisco.