Catharine very kindly allowed us to leave the car from early on our arrival day until late on our departure day (presumably the guests before and after didn't have a car) which was extremely helpful. We were met for an early check-in by Antonello who was very accommodating and allowed us to use the toilet and leave luggage although the flat was not ready. Quite a lot of things were provided - including bottles of water, breakfast, milk, ha, cheese, bread and fruit.
There is a view of the dome of St Peter's from the ample balcony, though somewhat obscured by summer tree growth.
The apartment itself is as in the pictures, perhaps slightly better.
A very good place to stay especially if you are visiting the Vatican, and within walking distance of the centre of town and Piazza Navona if you are happy to walk for 30 - 45 mins.
recommended.