The photos you see are 100% accurate so I will try and touch on points that are less obvious. Yes, the space is modern and stylish but it might surprise you that it is just off the main street in historic Città Alta! Just a few steps from the house and you are right in the middle of the sites and restaurants/bakeries/shops/etc. The bed is comfortable, the room has a calming energy, and the windows can be opened to allow fresh air in. You get a private connected bath with an amazing large tub - in fact, the whole bathroom is large and comfortable and sparkling clean. Your hosts Alessandra and Marcel are delightful people, so very kind and well-traveled. Be sure to find time to have a chat with them!
Finally, when I researched Bergamo it seemed like most people said a day trip from Milan was all that was necessary. However, I completely disagree, in fact I think you would do well to stay here and day trip to Milan. Just beyond the city walls you will find miles and miles of winding roads going up into the hills - my suggestion is to grab some local salami and some olive bread and head out for a walk. Enjoy the views, give your legs a workout, and when you reach any number of vistas have a nice picnic and be glad you aren’t surrounded by the tourists and smog of Milan.