Pleasent stay in a semi-hotelesque (many rented rooms in a house) AirBnB. Check-In via code was great (I checked in in the middle of the night), the room clean and equipped with everything needed. The coffee machine is a nice addition.
You have to be aware that it gets quite bright in the room in the early morning, so it might difficult to sleep until late in the day (but who wants to in San Diego anyway?).