What a location! On one of the most beautiful piazzas in Italy, a joyful place with magnificent architecture and a brilliant light that floods the apartment through two large window-balconies. It can be quite loud in the living room and kitchen, like a party all day and evening, noise that echoes from the buildings across, from dogs, children, tour groups, street musicians good and bad, restaurants dumping bottles from large containers into trucks at 7 AM. This problem comes with a virtue: people-watching is fabulous, interesting activity all day. And the bedroom is luckily two doors away, doors that you can shut to shield you from the noise.
The apartment itself is quite roomy, with plenty of storage space to put all your stuff, good internet, good lighting in every room, comfortable bed, and yes, reliable parking inside the courtyard, after driving slowly through pedestrian areas.
Dario, the caretaker, is friendly, upbeat, and helpful.
Two drawbacks are a moderately equipped kitchen with some broken things (we told Dario) and low water pressure. We stayed in this place for a month, and we had no water for two full days (Dario provided us with another apartment not too far away for showering and cooking), and on another 5 or 6 days there was no water in the morning, so we kept a bucket full of water to flush the toilet and many bottles filled with tap water for the kitchen.
The problems seemed to us smaller than the unique experience, and we would stay there again, but you have to decide for yourselves if that will be the case for you, so we can recommend the place but not unconditionally.