Ciro is a really nice and friendly host. He provides very good area information (we went to several of his recommended places), and frequent communication, very helpful. The apartment is as described, and even better in many ways. The Duomo is RIGHT there, so you can't get lost... just look for the dome.
My daughter loved the bunk beds - and Ciro's thoughtful kindness, of leaving so small toys behind. I appreciated his help with luggage, bringing some nice pastries the last day (I wish we didn't have to rush for our train).
The apartment has a real sense of history (maybe 500 years old), and is great for a family trip. We plan to return someday!
About the noise, yes, it's there, it's an old stone European city, in a lively neighborhood, and plenty of cathedral bells as well... that said, my daughter had no trouble sleeping and I discovered something that works better than earplugs (for me), if you've an iPhone (or a laptop), you can go online and find free "white noise" sounds. Between the darkness of the room (those shutters are fantastic) and the white noise, I slept quite well.
There's lots to see and do, and eat and drink, and easy shopping, all minutes away on foot.
So far, our favorite Air BnB space.