I stayed twice on my arriving and on my departure from la paz in Hotel Sagarnaga.
Stayed only a few hours, not to spend the waiting time on LPB airport. It's (without rush hour) just a 20 minutes ride with the cab from the airport.
I checked in and out in the middle of the night without any problems.
The room was very clean, the bath room as well, the bed was good, there was even a heater in my room. So everything very much to my satisfaction. Thanks.
Have heard the breakfast is good, but I had to be back at LPB before breakfast time.