What a fantastic experience and apartment! We stayed in June, with our family of five. Communication even before the visit was amazing (and Antonio was super understanding and helpful when I accidentally canceled the reservation!). Roberto was on-site for check-in and check-out, and he was incredibly helpful; he also gave us great neighborhood recommendations. The apartment itself is charming and spacious, has everything you need, and is so well located- most things were walking distance, but the metro is right nearby as well.
Could not recommend this apartment more highly - if you are considering, book it!