We had a very nice time at the San Francico Serenity.
The rooms were really nice and clean, the third couch-bed very convenient, so the apartment is ok for 3 or even 4 persons.
We had a very warm welcome from Joan and Adam and they brought us things for breakfast each day. The fresh dishes sometimes came a little bit late in the evening, but everything else was perfect.
So if we come back to S.F. we will stay there again.