Thank you so much, Radu. I spent my winter holiday with my family in Radu's place. It was wonderful and more than I expected. The price is reasonable, and Radu's response is quick. The location of the house is a little bit "confusing", but as long as you use Google map or read his instruction before arrival, it will be easy to get there! I will recommend this place if you think to find a place in SF downtown is too expensive or you like a quiet and nice place, Radu's house is definitely a good option!
Gary Huang