I've been there. Pretty convenient location (walking distance to the SF subway system). Get on the conceirge floor (6th) which can only be accessed through a elevator code. And ask nicely for a breakfast buffet coupon (lobby restaurant). The buffet is actually quite good with lots of hot breakfast foods. Parking costs not to bad, I think 6 dollars to self-park. But you can also park in the adjacent parking lots (I think there is an IKON Office supplies building) as long as you are discrete. Rooms are typical marriott.