Location is perfectly close to the main sights and the old town. Flat is large with two nice sleeping rooms and two bath rooms. Communication with Luca and his brother went absolutely easy and they also helped us to manage the ticket for the 'Zona traffico limitado' (ZTL). The only thing to think about is when you arrive by car, as the flat is in the ZTL and parking nearby is a challenge. There is a garage very close, but it would cost 55 Euro for 24 hours. So better park in a garage more far away for 22 Euro.
Full recommending the flat and its host.