My mother stayed in the Mario's house, and she said to me that this was a fantastic experience! Mario has a very beautiful, modern and (very!) clean apartment with french windows and beautiful terrace! It is located perfectly - only 5 minutes on foot from the Bergamo train and airport bus station. A breakfast in the morning was a pleasant and unexpected bonus:) Mario and his wife are helpful and very pleasant people. My mum highly recommends me to visit beautiful city Bergamo and to stay in Mario's apartment, so I will recommend it to you as well:))