For the most part, I found my stay in Constance's place comfortable. It is clear that she has put a lot of time and energy into making the place as comfortable as possible for us guests.
What I Liked: I admired how private the place is. The view of San Francisco's southern neighborhoods is quite nice and the outdoor space is nicely appointed and is also quite private. The bed is comfortable and I appreciated the numerous pillows Constance provides because I'm a "side sleeper" with painful knees (5 knee surgeries!) so it was much appreciated to have a pillow to place between my knees while I slept.
However, there were a few issues that made my stay less enjoyable than otherwise would have been the case.
Lackluster Water Pressure. It is very important to me that the water pressure in the shower be adequate. This is not the case in Constance's place, at least with regard to the shower. Perhaps this isn't important to many guests, and I understand that. But, a good, strong shower first thing in the morning is always a pleasure. That wasn't the case here. If Airbnb had a box I could "check" regarding the quality of the water pressure of the shower, I would definitely have done so. But I don't see how I could have filtered for "high water pressure" when searching for a place to stay.
Crowded Bathroom. Also, the bathroom door--when it is open--and the mirrored cabinet just behind it made the bathroom feel claustrophobic, especially when trying to enter the shower. Again, this may be my issue, unique to me, and not that important to other guests.
Washing Machine in the kitchen area? I'm not quite sure why there's a washing machine where the stove had been. Perhaps other guests find it useful (although where the clothes would be dried befuddled me; San Francisco's cool, foggy weather makes it difficult for clothes to dry outside), but it wasn't pertinent for me. To be fair, since I didn't have clothes to wash, I didn't look for a dryer. Perhaps there was a dryer somewhere in the apartment, but it wasn't readily apparent.

Even so, I would rather have had the benefit of a stove on which I could have scrambled some eggs. (I realize that one can use the microwave to cook eggs, but that's not how I prefer to scramble my eggs.) Again, perhaps you can "chalk it up" to my idiosyncrasy of preferring scrambled eggs from a stovetop.
Noisy Refrigerator: And, while Constance acknowledges the noisy refrigerator and posted a note that it can be unplugged during the night (which I appreciated), its sounds were a bit annoying. While I know it is expensive, I believe it would be best to replace the refrigerator with one that doesn't emit such noises. As for me, I always bring earplugs when I travel so they came in handy during the two nights I stayed at Constance's place.
Importantly, the place is too small for more than one person except for, perhaps, Siamese twins who really enjoy each other's company. Most couples I know, mine included, would find the size of your space too confining, even with the nice outdoor area that Constance has thoughtfully appointed. After having lived in San Francisco for 30 years, I know it's not always pleasant to rely on the outside space as a refuge or for time alone.
For these reasons, I could not give Constance's place a "5 star" review. I hope the reader understands that I'm not being snarky or cruel; I'm just trying to be honest, realizing that this is just my opinion and that my comments may be specific to my quirks & preferences and not representative of the majority of the guests who stay at Constance's place.