Renato's place is great if you are planning to explore the beautiful Citta Alta (higher Bergamo) by walk. The 2km walk offers great views.
As for the apartment, it's easily accessible via Bergamo's bus network from the railway station and has enough restaurants and supermarkets in the walkable vicinity. The property is just how it looks in pictures. Kitchen was adequately stocked with breakfast items and the bathroom and living room are shared with other guests.
Renato's suggestion for a restaurant turned out to be great! He responded to messages promptly and was at the apartment to receive us!