The apartment is big, clean and quiet. It has 2 little balconies, which is enjoyable (and useful to hang clothes). The elevator works well (apartment on the 7th floor). The neighborhood is residential. It is near the Vatican, and close to metro stations. Luca is welcoming : he had bought some goods for breakfast and prepared a list (in French :)) of what we could do nearby. Luca was also very helpful when we needed him.
On the downside : The hot water is sometimes difficult to handle, the main bed is noisy, and the blind was difficult to open (as it was in the bedroom we left it shut, which was not a problem).
All in all, it was a good stay.