We had a lovely stay at Marco's apartment. The apartment itself is very spacious, clean and has the most well equipped kitchen I've seen in any Air BnB! The roll down blinds also ensured we had a great night's sleep both nights of our stay. We also really enjoyed the two small balconies with chairs and tables.
The location is in a lovely area 20- 25 minutes walk to the Duomo. There are grocery stores near the apartment. There is also a tram stop right out the front if you don't fancy walking. The apartment is on the 3rd floor but there's also an elevator if lugging your bags up the stairs isn't for you.
Marco was very prompt with all his communication, and met us at the apartment no problems. All the best to you Marco with your Air BnB hosting :)