Though this is advertised as a "shared room," it is very private. I did not see other tenants in the 4 nights I stayed in Ar's place. There is a dedicated side entrance with arrows guiding you directly to your room which made the check-in process extremely smooth. The room felt like a private hotel room with an ensuite, fridge, microwave, and anything else you may need when you're traveling. Ar even left us some complimentary water and snacks which was such a great touch. The bed was very comfortable and BIG! The room is very clean and bathroom was very well equipped.
Ar was extremely response. My boyfriend and I checked in rather late, around 1 AM, and learned that the WiFi was not working. I messaged Ar not expecting a response until the following morning but he sorted out everything by 2 AM with Comcast (poor service caused by bad weather). His attentiveness at such a late our was impressive and very much appreciated.
Parking was somewhat of a pain. The driveway is rather small and was unavailable whenever we came home in the evenings therefore we had to resort to street parking. Sometimes we got pretty lucky but other times we had to walk a little further which was OK. Ar's house is on a steep hill (like the rest of SF) so make sure you remember to turn your wheel the appropriate way and engage your emergency brakes.
Overall, a very very pleasant stay. Looking forward to staying here again when we come back to SF next time!