The hotel is very conveniently located right next to the train station. When you come out, just go left, across station grounds and then a big parking space, and you’ll see the hotel.
A note for non-Chinese visitors: when we arrived at 11pm after a long day of traveling, we were told that we need to go to the police station to register, since they won’t register passports at the hotel themselves. After calling the police station and finding out that nobody was there to register us, they tried doing it themselves and eventually it worked. The whole process took quite a long time and was a bit stressful and confusing for us at the time, but glad that things worked out in the end and glad that this is the only hotel in Yunnan in which we encountered such a problem.