We had a great Family trip to San Diego where we visited a few of the most common touristic places. Steve was a great host which provided very clear instructions up front, and welcome us when we arrived on the first day. He was there to help or response if needed. The house had all the amenities that we needed, was clean and new, very comfortable and at walking distance from great restaurants. We rented a car and drove around. In my opinion, a car might not be needed if you only think to stay around downtown, but if you are planning to visit some of the surrounding areas, sucu as 'La Joya', 'Coronado Islands', or if you are even thinking to go further to visit some of the beautiful beaches in the road between San Diego and Los Angeles, then a car might work for you. Just for your information, parking outside (which is free for limited hours) might be a bit hard, but we managed to get a parking spot outside after looking for a bit, every single day.