I'll keep this very brief. The apartment is at an ideal spot for any tourists in Rome. Spotless apartment, lovely view, a spitting distance from St. Peters and the Vatican, trams that drop you off very close to the apartment, and a train station literally at your doorstep.
There's a map to help you find your way, a coffee machine, a wonderful bathroom with soap, shampoo, and towels, and most importantly, this is one of the few places in Italy that has air conditioning.
The host was wonderful and our stay was very pleasant.
Note: The lift only takes you to the floor below this apartment. There will always be one flight of stairs which is worth noting. The plus side to that, however, is an unparalleled view.