Contact with Maria was excellent, she gave us tips on how to get from the airport to the apartment and guided us through the check-in process.
The apartment has a great location, close to the street with a lot of restaurants and 10 minutes walking distance from the bus station that takes you to the airport and Citta Alta (old city, the most touristic place in Bergamo). The train station is also near the apartment.
The place is big enough for two people and has many amenities (washing machine, dishwasher, microwave, etc.).
Unfortunately it felt like it was not cleaned before our arrival. Everything in the kitchen was sticky and the shower was very dirty.
There was also a lot of dirt on the floor of the living room.
I wouldn't recommend it for summer as it is simply too hot and the fan is not enough to cool the place down to have a good night sleep. Opening the windows is also not a good option as the street outside is pretty busy (buses, scooters, loud noises) and there is a huge amount of mosquitoes coming in