My friend and I stayed in Jeff's apartment for a week in October and have nothing but nice things to say about the whole experience. The apartment looks exactly like the pictures in the listing - the furnishings are fantastic and the beds were like heaven after a long day out exploring the city - and is close to everything you would need during your stay.
Jeff was extremely responsive (usually within a couple of minutes) and more than helpful whenever we had any questions.
Hopefully when I am back in San Diego next, his place will be available and I would definitely recommend it for anyone wanting to stay in the area.