Hi, I'll be short cos this post will be very very long.
Location is best, if you wont more better location you have to sleep in the middle of fountain. Room is 16-Th century with its original frescoes. Price is very nice according to it's characters. Room, bath and everything is very clean.
And finally Paola is best host, very worm and helpful, fast respond and good communication.
Definitely recommend
Good luck and hope to travel in Bergamo again and stay at Paola's place