My mom and I had a nice stay at Jon and Christine's in-law suite. They were attentive to our heating needs (unusually cold in Nov) and kept everything nice and tidy. Free street parking is mostly available within a couple blocks (highly rec a small car!) and you can walk or drive quickly to some good food options on Geary and Clement St. It's a great value with easy access to Golden Gate Park and the Presidio.
Very minor details: It's a first floor unit so there isn't a lot of natural light, and the family lives above so you'll hear some occasional noise (not unlike most apartment buildings). None of this bothered us since we weren't at home a lot.
Overall it was a very pleasant experience and we'd recommend it to anyone who prefers good value and a quiet but accessible location.