Kelly's Airbnb listing offers lots of extremely strong advantages.
First, the location is superb. It is about 8-9 minutes walk from a Broadway stop of the frequent bus from the airport; about 6 minutes walk from stops on two of the city's three mass transit trolley lines; and almost on top of bus stops in all directions. Large-size food markets are not as close, but that is because they are usually few and far apart in most parts of San Diego; there is one large one about fifteen minutes away in the heart of the Downtown, which is also on a local bus run.
Second, the lodgings are excellent. There are two guest rooms. The one I had opened onto a small side passage, which let in daylight but which kept street noise to a minimum. The kitchen is fully equipped, as is the bathroom, both of which are kept pretty clean.
The host was very helpful to me, above and beyond normal expectations, which made my stay with him much above average.
I strongly recommend this Airbnb listing without any reservation.