Zemfira was super nice and accommodating! She greeted me very warmly and offered lots of advice on the surrounding area, transit system, etc when I asked. Her hospitality was definitely the best part of this stay - it didn't feel like she was breathing down your neck though, she let me mind my own business when I wanted. The bedroom (and whole apartment) was very nicely decorated/furnished. The only downside I experienced was air temperature/noise - yes it was a cool San Francisco night, but it still got pretty hot in my room. I was afraid to open the window due to potential traffic sounds outside (I'm sensitive to noise but in hindsight I should have just opened the window before sleeping because the noise wasn't terrible), so I woke up and had to open the window in the middle of the night. So that may have been just a personal problem but just be aware of that. The apartment is close to a high traffic area.
There was one other guest room across from me to share the (very nice) bathroom with, but it was never a problem. Check in/out was easy; all in all I had a very pleasant stay and would definitely recommend Zemfira's beautiful home!