I stayed at Michelle's apartment with my parents while showing them around San Diego.
Michelle & her husband had the quaintest apartment I have come across as an Airbnb listing. It is very tastefully done, meets all your needs & is very comfortable.
It was located in a central part of town, so almost everything we wanted to visit - the Zoo, Old Town, Gas Lamp, Coronado - was all a short 10 min drive away. Parking is on the street and never hard to find. We've returned back at around 1 am one night, and have had no problems with safety or finding parking.
It was one of the colder nights in SD, so we were also provided with space heaters, and the bedroom was cozy enough so we needed the heater only out in the living area.
The hosts give you as much privacy as you need, and are always available to help.