I stayed here for about a month as a workcation. Overall, Jeff's place is great, highly recommended for a first trip post-covid, or maybe even a staycation in the bay.
Jeff's place was extremely clean, the bathroom was unforgivingly white, but there wasn't even a spec of dust to be seen. Bedsheets and towels, likewise were also up to spec.
The kitchen had all the basic things you need, although if you were trying to make something complicated, there may be some limitations.
The area was quiet and secluded, and other than some neighbor's walking every so often, it was pretty much dead silent.
I'd say the only downsides were the drive up here is a pain (that's windy mountains in the bay for you) and people really weren't kidding about the stairs. (I'd say probably 4 or 5 flights)
Other than that, my stay here was great, highly recommended!