The apartment is great!
Gianmarco was a perfect host, waited for us to arrive although we were late. He provided all the information we needed and had everything nice prepared.
The apartment is very nice, you have there everything you need and very clean. It's not a big one, but if you plan to visit Rome you don't need more. I would definitely recommend it.
We walked for the location to all the main visit points in Rome. if you like to take Rome by foot it is possible, we did not use public transportation, walking distance is 15-20min to Trastevere and about 40min to the center.
Overall, we recommend Gianmarco's location and himself as a host!