The room was exactly as the listing described - private, clean, and in a great location. It was really close to BART and bus stops, which can get you just about anywhere you'd want to go. But it was also within walking distance of the great shops, restaurants, and culture of the Mission.
The only thing I'd make note of is that the room is kind of like living in a basement apartment. You can hear people upstairs moving around and talking although it wasn't a disturbance for me. I got sick on the trip and ended up spending a little more time in the room than I probably would have normally. So if you're planning on being out of most the time, you probably won't notice it.
Overall, if I'm ever back in SF, I'd definitely stay with Geoff again.