Staying in Antonio's apartment is a bit like visiting the home of a very interesting uncle, whose collection of much-loved objects is a reflection of a full life.
You cannot beat the location. We were quite happy with the centrality of his place, the ease at going to the supermarket nearby, and the general feel of the neighborhood. As others have noted, the many steps up are a reminder of another time, and the graciousness of the architecture was wonderful.
Meeting up with Tiziana, who let us in, was easy and very amiable. Since Antonio was away, she filled us in on many details, and was available for questions.
The apartment is charming, and we fixed a number of meals there, and found all the pots and pans we needed. It is a very atmospheric place, and even though lighting was a bit low in the living room, we did manage. The view out the windows is of a little piazza, and it was fun to stand on the balcony and see the activities below. It's a city, full of life, and in that way, not completely quiet, but given the location of the palazzo, it is not disruptively noisy either. We found it just right.
Thanks Antonio for putting your charming place on Airbnb. A nice experience.