We stayed at John'a cottage for over a month and we had a great time. The location is amazing with a lot of restaurants around.
In the cottage there is everything you need: a big hoven, microwave, TV with Netflix, amazon TV with a lot of movies, a fast internet connection, a desk and a sofa. John let you use also his washing and dryer machine for the laundry and he provides also the washing soap! Communication with John was super easy and he really takes care of his guests!
We really recommend his place to enjoy San Diego!