Yupe, me & my bf really having good time there. Chinese there are relatively helpful, yeah... sometimes they look fierce but they have kind heart. I thk when you speak to them in "Pu Tong Hua", they will be very happy thou.
Maybe u can let me know roughly the places that you would like to visit then I will go home dig those IYH brochures.
Averagely, it is about 3-4 days to stay in a province. So I believe 3 months will take u quite a lot of places. Just need to plan well for the fund.