Rob was a very nice and welcoming host, taking the time to chat, explain things about SF and answer all my questions (in spite of his busy schedule). His place is just as described and is a really great apartment, really spacious and well maintained, offering plenty of privacy. The location is great, in a quiet neighborhood, yet pretty central so offering a good access to all the places you could want to visit (especially the Castro/Mission district).
I would definitely recommend Rob's place to anyone coming to SF, and will definitely book it again if I come back!