We spent a pleasant week in Bergamo in March 2018. Dario and his family have the very good renovated apartment. I would say, that it is a VIP apartment rather than just a flat. It is located close to the center, railway station and restaurants in the calm corner, - exactly what we needed for the vacation.
Dario is a very friendly and hospitable householder: he gave us good advices regarding sightseeing and Italy overall. As he fluently speaks English (and it is not an often case abroad), we had an easy and efficient communication.
I highly recommend Dario!