I recently stayed at Chiara's apartment with my partner and have to say that it was one of the most pleasant and stress free experiences I've ever had.
I spoke mainly with Silvio for the duration of the trip and a lady named Hile met me for the exchange of keys but all three of them were incredibly helpful and easy to contact via WhatsApp.
The apartment was absolutely spotless and very well appointed with modern fixtures and fittings everywhere. It almost looked purpose built for our stay! It's also just a few minutes walk from the Ottaviano Metro station and Vatican museums so it couldn't be better placed. We felt very safe when walking around the area even as late as 1am which is commendable in itself.
Overall, a terrific experience and should we visit Rome again we wouldn't think twice about where we would stay. Thank you for having us guys!!