First of all, location, location, location. The property is in the Inner Sunset, toward Golden Gate Heights, a quiet residential neighborhood in SF, but very close to great stuff. The apartment is a 15-minute downhill walk to the busy commercial strip along Ninth Avenue/Irving (great restaurants, bakeries, bars), Golden Gate Park, The DeYoung Museum, the SF Botanical Garden (spectacular at all seasons -- and do try the 1:30 free daily tour!), and, well, the views to the north of the Golden Gate Bridge, and to the West of the Pacific Ocean. It's a spectacular location. We have a daughter in the neighborhood, so it was perfect for us, and so vastly nicer than the touristy downtown SF area.
The apartment itself is very clean, functional, and easy. The bed is comfortable, and we both slept very well. The kitchen is easy to work in, though we didn't do any ambitious cooking, just oatmeal in the morning. The living room is large, and a bit spartan -- one of the couches is a little uncomfortable -- and it would be nice if there were a couple of extra little end tables and lamps. But there's a nice kitchen/dining room table, which was very good for working and eating, excellent overhead lighting, loads of electrical outlets, and a TV that gets every channel imaginable.
Check-in and check-out were simple. The owners, whom we met at the end of our stay, live right upstairs. They were very nice, attentive to our needs, and accessible.
We hope to be back!