I liked the "hostel-like" vibe of the place, which is nice to meet people. Both the flat and my dorm room were big, with nice common areas and a good wifi connection. The flat is close from the Colma BART station : you can be downtown in 5mn for 3,7$, which was great. Plenty of shops and supermarket in the area. Zack is a very welcoming and friendly host. I would really recommend this place if you're looking for a budget-friendly abd comfortable accommodation to visit San Francisco.