The location is PERFECT. We loved it. You can see the fountain if you hang your head out the window and it is only a few steps out the door of the building. There are tons of restaurants and a grocery store just downstairs. It is beautifully decorated, and clean. Very thoughtful touches including wine, dessert and breakfast snacks on the table. Eggs in the fridge, coffee, and a few other food items plus kitchen items you would need to cook a small meal. It is rather small, more like a studio (but this was the only place we stayed in Rome so maybe it is standard?)
In the bathroom he had a hairdryer and flat iron, adapter , a small sewing kit, first aid kit and basic toiletries. He really thought of everything.
He arranged for a driver to take us to the airport after our stay. That was very helpful.
At the beginning of our stay, we arrived a little later than planned and had to get the keys from a hotel so that was not ideal. Probably the (only) really frustrating parts were the wi-fi that either didn't work or went in and out, and the keys were difficult to open the building and the apartment itself.