Enjoyed the night train experience. I cannot review all of the cars, as we had a private sleeping car, which was clean and perfect for 2. The trip back to Hanoi was not as smooth as the leg to SaPa, because it was a very steep decent.

Review link: https://www.tripadvisor.com/Attraction_Review-g311304-d25070205-Reviews-VIC_SAPA_TRAIN-Sapa_Lao_Cai_Province.html