I'm very impressed of this accommodation, probably one of the best i had ever in Italy. Everything is true, even better than shown on photos, antique house, lot of space, awesome location. Did not have any issues with heating, cooling, hot water, shower etc. Ladders are narrow, so let's don't recall the scene from 'In Bruges' movie.
Apart from that, remember that you have no public garbage containers in Bergamo and it is not easy to get to airport in the night or holidays. Consider an appropriate planning.