Mario and his wife are amazing hosts. Not only is the private room adorably decorated, comfortable, and clean, but they go out of their way and consider even the smallest details that will make your stay extremely comfortable. They have a coffee and tea station in the room with a microwave and a fridge. They're extremely kind and their hospitality is the best. You'll appreciate all the small details and their warmth. You can tell they take pride in their home and in hosting.
Aside from this, they're centrally located so any San Diego beach or tourist location is just a short little drive. Hillcrest was 5 minutes away. Old town was close too.