Me, my wife and couple of our friends stayed at Federico's place for 4 nights during our first visit to Rome, and the experience was fantastic.
Initial booking (5 out of 5): throughout the initial inquiry and research, Federico has been extremely responsive in all of my email: from providing the description of the area, the description of unit, and the transportation arrangement, he always ensure that his response be provided within 1 day.
Location (4.5 out of 5): the apartment is located at the heart of Spanish Step area. We are literally 2 minutes walks away from the site. All food and amenity are all within 5 minutes of walking distance. During our 4 days of visit, we never needed to get onto a subway or taxi in order to get to the destination (aside from the regional train station). Coliseum is one of the furthest tourist attraction from the apartment, and it only took us 30 minutes to get there.
Accuracy and cleanliness of the apartment (4 out of 5): overall the description of unit is fairly accurate, and the cleanliness of unit is up to our expectation. The only "knock down" would be on the second "full bathroom". In my opinion, it would be more accurate to describe as "1.5 bathroom", as I found it a bit difficult to take a shower in the second bath.
Hospitality (5 out of 5): compare to other AirBNB host that we had deal with (and the unpleasant experience we had in Florence right after Rome), I would say Federico is one of the best host I have encountered. He is familiar with the surrounding, willing to spend time with you to help you understand the area, and had room full of food and coffee ready before your arrival.
Overall, I say the unit is best fit for 3-4 guests who is visiting Rome for the first time. Location is fantastic, host is great, and you got few of the best know eateries around the neighbourhood.
Thanks Federico.