We stayed at Ronnie's place for over a week during Christmas. The place was clean and comfortable and worked great for our family (me, my wife, our 2 year old, and our dog). Location was great, close to the beach, coffee shops, restaurants, and grocery stores. Off-street parking was great to have, never having to worry about finding a parking space or if we needed to mover our car.
Although the place doesn't have an oven, it does have a bbq, which we were able use to cook Christmas dinner (2 ducks, sweet potatoes, stuffing)! Does have a full size gas stove, toaster over, full size fridge, and full set of pots and pans. Worked great for us to make breakfasts, lunches, and dinner (if we didn't feel like venturing out to the various restaurants within walking distance).

The bedroom and bed were comfortable, with great blackout curtains (really invaluable for nap time for a 2 year old). The living room has a full size couch that pulls out to be a bed. Not sure how comfortable it is (we didn't use it) but looks like it could sleep an additional 2 people.
The outside patio was very nice, providing a nice outdoor eating area to enjoy the lovely San Diego weather.
My family and I thoroughly enjoyed our stay and would highly recommend for small families looking for a comfortable place to stay that is within walking distance to the beach, restaurants, and groceries. Close drive to other attractions like SeaWorld, Old Town, Gas Lamp District, and other beaches.