Paolo is a wonderful and caring host, the reviews you have read about him are all true. The apartment is very charming, calm and tastefully decorated. The views of Ancient Rome are insane!!! The Monti where the apartment is located is truly the best neighbourhood in Rome for authentic, original dining and drinking. Walk out onto the street and turn right and go explore every nook and cranny of this neighbourhood, you won't be disappointed. Not touristy at all. The best gelato awaits you just up the street at Fatamorgana. Incredible.
The walk-up to the top floor is hard like hell, but a perfect anecdote to all of the eating and drinking you are bound to do :) . I would highly recommend Paolo's place to anyone looking for an authentic Roman experience. P.S Ask Paolo to arrange your transport to the airport for you, using a private car service. It's less expensive than a cab, comfortable, safe and the driver was adorable.