Ray's place is very spacious and comfortable, especially with large groups. Our group was 18 people and everyone had enough space to sleep comfortably. One thing that really stood out to us was how organized and clean it was. He has some house rules to maintain this for all future guest, such as helping to put all trash in the kitchen area and throwing the sheets in the hamper. This was fine and took everyone a couple of minutes before checking out.
The upstairs living room is very big and has enough couch space to sit most of us comfortable. It allowed our group to watch movies together and really bond. Though we never met Ray in person, he was a very communicative host that checked-in on us via message. We will be sure to stay at this place again in the future, if we travel to SF as a large group.