I never had the chance to meet Valter, but Chiara is was very friendly and accommodating. The space is large with its own bathroom and AC (which was a godsend because it was 95 degrees most days I was there). The location is great as you can see St. Peter's Square from the window. You also have a 5-10 minute walk across the Tiber to be right in the city c renter. Highly recommend.