Hi! We are big group of friends. We are coming in October to Guilin. We planed to go then to Zhangjiajie by overnight train trough Liuzhou/Liujiang. But we are told that the train from Liujiang to Zhangjiajie is the worst train in China now. The train condition is not very good including sanitation condition.
Is it true? Fnd if so what are the other possibilities?