We had a great time at Ciro's apartment! The location was perfect and we were able to walk to everything we wanted to see. The apartment was very spacious, has a great view of the Duomo, good WiFi (though signal doesn't reach the bedroom, it's strong elsewhere), a the kitchen with everything you'll need, and a very comfortable bed (we had great sleeps, and were woken by the church bells). The building has an elevator, which is a big plus. There is a small grocery store just down the street. We took a cab from the train station (10 euro), but you could also walk (10 min).
Ciro met us at the apartment for check in, showed us around the apartment, and provided good recommendations for food/markets. He was a vey good communicator and easy to get ahold of.
We would definitely stay here again!