Location, location, location – the apartment is convenient to everything (grocery store, buses - especially to downtown, Golden Gate Park).
Myrna was incredibly responsive about any issue that arose. For example, when the broiler didn't work, she called Carlos of Golden Gate Appliances, who fixed it in a few minutes. When the internet was running really slowly, she worked with Comcast to fix the problem within 24 hours.
The apartment was comfortable. As noted in the description, there are 2 flights of steps to enter the apartment, and some truck noise in the morning that she doesn't control. The kitchen works quite well for those who like home cooking, but there are also good restaurants in the neighborhood. As well as yoga. And a weekly street market. If we're in San Francisco again, we'll stay there again.