We have only good memories about our stay at Simona's place. We didn't know the exact time we would arrive and arrived earlier (around 10am) but Massimo (Simona's brother) brought us the key just 5 min after we called him. He showed us around the apartment and gave a lot of useful info regarding bus and metro routs as well as good places to eat. He also arranged a very convenient car transfer to the airport that costed only 40 €.
The apartment was clean, spacious and tidy. There is a supermarket not far from there (approximately 15-20 min walking distance) where you could buy all you need for breakfast or dinner. For example, we bought wine (just for 2 €!), some cheese and bread and had a lovely dinner one night :) Unfortunately I don't know the address of the supermarket but I think you can ask Massimo or Simona about it.
Another great thing was that we were allowed to check-in earlier (before mentioned in the apartment's description 3pm) which was very helpful. Thanks a lot Simona and Massimo!