Gary's place is really the ideal standard AirBnB. What I mean is that there are substandard AirBnBs, way above standard AirBnBs that allow you to find yourself in palaces for nothing, and there are AirBnBs that are well-hosted, comfortable, clean and a great place to lay your head down after exploring wonderful locations. Gary's is more the latter, and that's precisely what I was looking for. It's a quality, comfortable place well-situated within walking distance of some of the best areas in San Diego (and the backyard hammock certainly made it an extra comfortable stay).
I'll likely stay here every time I need to be in downtown-ish San Diego.