We couldn't have asked for a better experience!
Elisabetta's place, in addition to being extremely clean, organized and well-equipped (I would say even more than my own house!), is very well located. From there, you have easy access to the upper city, the lower city sights (such as the Accademia Carrara) and the station.
Oh, be sure to try the best pizza in Bergamo (in fact, the best we had till now), at Trattoria da Adelle, and the best pistachio ice cream, at Verderosa.
Finally, I cannot fail to mention Elisabetta's hospitality. From the first messages, she was the perfect host: helpful and welcoming.
Both my mother and I are looking forward to returning to Bergamo! Until then, we would be happy to recommend Elisabetta's place. We have no doubt you're going to enjoy it!