Xiong Zheng is really a nice person who helps me to have more informations about the city and to organize my trip. In addition of that, he leaves me a lot of liberty. In exchange, we have just to respect some basic rules about cleaning, After all, it's normal, we are not in a hostel. Just an advice for the persons who want to come with a gift, don't buy alcohol, he doesn't drink it. You will have more success with chocolates.