There are the usual 'cosmetic' issues; a missing slat in the blinds, a wall decoration had fallen, the WiFi SSID was incorrect on the owner's information sheet.
If you do not have a car, then the following parking issue does not apply. However, if you have a vehicle, please be aware of the following: Parking is an major issue. The owner's Airbnb listing states that there is Free Street parking. This property does not have assigned parking for your vehicle. You must locate and use public parking (i.e., park on the street, et al.) This was very difficult.
The following excerpt is from the San Diego website (https://www.sandiego.org/explore/things-to-do/beaches-bays/mission-beach.aspx): Don't count on finding parking on any of Mission Beach's narrow and densely inhabited residential streets and, if you do, check the signs before you count yourself lucky. Slightly better odds can be had at the public lots around Belmont Park, Santa Clara Point and South Mission Beach Park. Otherwise, this is a good place to visit by bus or bike.
After searching for a parking space for an hour, I contacted the owner. The owner stated 'either make it work or cancel or your reservation and hope I can rebook it to be eligible for a refund.'
After being in the unit for three days, we noticed the shower drain had debris, indicating an issue with the plumbing. I sent a note and picture of the issue to the owner. The owner indicated he would contact the Drain Patrol to service the unit. My wife and I left for the day. After a long day of hiking, we returned to the unit to find the toilet had overflowed. The toilet water covered the entire bathroom, part of the bedroom and living room. The smell was bad. I called the owner to report the issue.
To the owner's credit, they quickly located another unit that we could move to. It was located 0.5 miles away (and it had a garage). We retrieved the car, packed up our gear and moved to the upgraded unit.
The second unit also had some 'cosmetic' issues. This included a dirty drip coffee pot with coffee grounds from the last user, a very-new Keurig coffee maker, complete with packing tape still attached to the reservoir, the outside garage keypad did not work and the living room ceiling fan light would turn on and off randomly.
The owner always responded within one hour of my communications.
Please note: If you use smart TVs to log into your streaming services (i.e., Netflix, Vudu, Plex, etc.), please remember to log out of the services when you are done. If you don't, you risk exposing your private information (i.e., email address, profile names, viewing history) to the next person who happens to use the service. This was true for both units we stayed at.