Maria's place is gorgeously decorated, well appointed, immaculate, safe, and in a truly lovely neighborhood. I travel to SF for work frequently and stay in AirBnBs, and I knew this area was nice, but my expectations were blown away. Maria's hospitality was excellent and meticulous, but never intrusive, and I felt very comfortable there.
This is a lucky find for anyone who gets to stay here, and I would recommend it without hesitation. I hope to get another chance myself, so I can enjoy it more and try some more of the great restaurants in the Castro.
My only warning is that this is not a place for someone who struggles with hills and stairs, as it has both. It is definitely walkable to and from MUNI, but when you're arriving with luggage consider catching a ride.