Outstanding in every way imaginable.
Nicola is a great host - friendly, helpful and forthcoming, room is bright and spacious, bathroom is brand new, adjoining kitchenette is very well equipped, smoking balcony is completely isolated from the apartment. There is absolutely nothing to complain about.
Location is literally 3min of slow walk from the entrance to Vatican Museums and the immediate neighborhood is beutifull, safe and full of shops and restaurants.
I would chose this place every time I visit Rome, no qualms about it.