Mark and Kathy are very friendly and nice. They care about you and make sure that you have a great time in their house and San Diego as well. I am so glad that my first experience with Airbnb was in Mark and Kathy's house. Thier house is beautiful and clean and it has a great location and an awesome view to the ocean! I will definatly stay in their house again if I come to SD.
BTW, they did let me to check in early, which I do appreciate it.