We stayed 2 nights at Charming house.
Claudia met is and showed us everything. We were two adults and two children and had lots of space in the apartment. It is very clean and comfortable and has a lot of light due to many windows.
It is relatively quiet, but you hear people on the street from time to time (windows are not very isolated).
I can totally recommend the apartment also for longer stays.
Claudia is very professional and there is lots of information about Bergamo in the apartment and she even had a little goodie basket in the kitchen with snacks and fruit- Thank you!!