Location: Less than 10 minutes walk to the convention center, so really really great for that. Very easy to get in and out quickly. It was unseasonably warm while I was there, so I had to use the AC, which can't be set below 74? Living room has a ceiling fan which helps a lot. I didn't have the windows open much, but the balcony/living room/office windows face onto 3rd (a bit noisy at night with the bar right there) while the bedroom windows face into the building courtyard and a sliver of 4th, which is quieter. There is a ceiling fan in the bedroom as well but it had issues when I was there.
This place is probably good for short-term stays, but not super great for anything more than a few days. The pantry is completely full of air beds / bedding, there isn't real closet space to hang anything up unless you move all of the bedding/towels in there, and there's minimal cooking equipment. The fridge's water dispenser is disconnected "for insurance reasons," but there is a blender, toaster, microwave, and plenty of flatware and silverware for quick meals.
Accessibility: The key retrieval requires bending down to find a lockbox underneath a chair, and the dryer requires a stepstool unless you are very tall (provided in the closet). Otherwise, the entire unit and entry from street level does not have any steps.
Overall, you can just tell it's a unit that's managed from afar (little things broken or rickety here and there, all of which Shawn offered to have fixed immediately) and things a bit worn. I mentioned all of these issues to Shawn because his check-in instructions repeatedly asked you to report any damage, but I'm guessing previous guests didn't encounter them or just didn't bother to report them, which is the usual problem with units managed from afar.
My main issue was that there are extensive check-out instructions you don't receive until check-in that include: taking out the trash, loading the dishwasher, and starting the load of your used sheets and towels because "if the wash isn't started the 4 cleaners will be done cleaning the unit before they can throw the laundry in the dryer." This strikes me as a little nonsensical if I'm paying a $145 cleaning fee for these 4 cleaners, but was mostly disturbing because I asked him how any guest could be sure linens were being cleaned with hot water on appropriate cycle and not just "quick washed" for 15 minutes by the previous guest. I didn't receive an answer. (In my case, I immediately washed the blanket that I could visibly tell hadn't been washed and rewashed the pillow cases because ew. I left the dishes clean, beds stripped, and the trash collected like I usually do.) Given the 10am checkout, early by most Airbnb standards, I suggested these be listed in the house rules.
Amenities: The pool, which I noticed there weren't any photos of, is not actually a pool for the building, or even the pool for another building a few minutes away like he implied when I messaged him about it before booking. It is the pool for a hotel 5 minutes away where he "knows the manager." This is fine if he has this relationship, but should really be made clear in the description.
Overall, great location for the convention center and gaslamp, but there were some hiccups that could be fixed with better management.