Our stay at the guest cottage was great! The hosts were helpful when contacted but otherwise gave us total privacy, which was just what we wanted. I recommend doing some poking around the cottage when you arrive-- I missed the trash can liners until the last day so we were using a paper bag. Oops! I loved that there were plenty of kitchen utensils so we could save some money by cooking in. There's one window without a curtain, which felt a little weird, but there didn't seem to be any direct sight lines to the sleeping area, so that was ok. The "bedroom" window has a GORGEOUS VIEW :-) the place overall is tidy and well-kept, even if some of the furniture has some wear and tear on it.
Although there are usually parking spots on the street, it's only for 4 hours at a time 9-5. I had been to this neighborhood before so I knew where I could leave my car for longer stretches of time. Guests newer to the neighborhood might need to do more exploring to find these spots, so plan ahead.
Super convenient location for taking BART. Big hill to walk up if you are coming back on foot. I think there's a bus you can take to avoid it but it's such a short walk it seems silly to wait for the bus unless it's really difficult for you.
Great experience overall -- this guest cottage is a perfect home base for exploring the city with some nights or mornings in.