As we stayed in Bergamo only for one day before catching our train to Florence, the location was super convenient - train station is only 5min away!
The apartment is in the modern area of Bergamo; however, it is close enough to walk to the funicular heading up to the old town.
Marco was very friendly, quick to respond and help with any issue or question you might have. The apartment was clean and spacious. We didn't have a chance to try, but there was even breakfast available in the morning.
One more convenience - self chek-in is available if you have super late/early arrival.