We LOVED Shannon's house...an immaculate victorian in a centralized 'hood in the Mission. Shannon was very responsive and offered many tips for eating and seeing. He left us a bottle of wine too :) His house is close to Four Barrel, Tartine, Bar Tartine, Bi-Rite - you really couldn't ask for a better location.
His house was perfectly clean and well equipped. The bed in the room was crazy-comfy and the air mattress was actually more comfortable than my bed at home!!! I have not one complaint about the house or my experience in dealing with Shannon. I woud recommend staying there in a heart-beat. Do it!