We had a great stay at Marzio's place. The apartment was well situated and it was very easy to get into the center by walking. We also had a car during our stay and it was very easy to get a parking space close to the apartment.
The apartment was large, very nice and clean and Marzio gave us good tips on where to go and what to do. The communication was great and it was very easy getting in touch with Marzio during our whole stay. I can absolutely recommend staying in this aparment while you visit Bergamo.