My staying in Heather’s house was great. The house is lovely and has a nice backyard, the room has everything you may need, the bed is comfy, wi-fi is fast. Heather is a nice and considerate host and her dog Goldie is very friendly and cute.
The only negative is the location, because there is nothing around (except for the Coliseum, of course). The nearest big grocery store is at half an hour’s walk. But it’s 12 minutes to BART and then 25 minutes to SF downtown, so in general this is a good option.