Pietro's place is quite central, but just far enough away from the centre that it's not too noisy. (I was there for New Year's and of course heard the fireworks but not the concert in the Piazza Duomo.) It's a beautiful old room and generally good value for the price, and in summer I think it's probably a lovely temperature because of the high ceiling.
However, in the winter, the room is far too cold. I was brought up somewhere with snow on the ground all winter, so I am not complaining lightly, but unfortunately there was no heater for the room, so I had to use multiple duvets and wear 2 shirts to bed in order to be warm enough to fall asleep.
I hope it is something Pietro is able to fix quickly as he was a responsive and helpful host, and then I would have no trouble recommending it fully!