I had a very comfortable stay at Erika's place. Her apartment is very well organized, clean, and very well positioned in relation to center and Citta Alta, walking distance. Also, it is very well connected with the buses. Cafes, ice-cream shops, supermarket are very close to the apartment. From the airport I did around 30 min by bus. Erika is very responsive and detailed with everything you may need for your stay in Bergamo. Highly recommend her place!