My girlfriend and I stayed at Josh's and had a great time. Experience Room 2 was bright and very clean, and the bikes really made our trip. Take advantage of those bikes, your feet will thank me ;).
Josh was very helpful with directions and he had good suggestions regarding what parts of the city to explore and how to go about doing that. Also, his place is in a very hip/trendy, youthful neighbourhood which we enjoyed. Check out the Magnolia Gastronomie on Haight Street just a couple blocks (5 min walk) away!
We would definitely stay here again. Thanks a lot Josh for all your help and great hospitality.