Joe's place in Nob Hill is great! I would definitely recommend it for a group coming to SF. It is ideally located, walking distance to Union Square and Fisherman's Wharf and a great base for exploring the city.
The apartment is extremely spacious, it is modern with great internet and a well equipped kitchen.
There are two ensuite Master bedrooms which are really comfortable, another large bedroom with a great bed, a smaller bunk room and also a bed in a part of the very comfortable and spacious sitting room- so in all, a great location and excellent space.
Joe is a great host, he was very attentive and welcoming and is always nearby if you need anything. I'd hope to return here someday!