In summary, comfortable place, great and communicative host, with an affordable price around the Bay Area. Calvin's place is quiet, clean and convenient to access any corporates or schools around Palo Alto, Belmont and San Carlos. I'm staying at his place for short term work, and both location and price has been unbeatable. The place is clean, exactly as described, and Calvin is very accommodating to any extra needs that I had (I was bringing a cat with me). I had a wonderful summer in the Bay because of this Airbnb experience :)