Valentina + David are excellent hosts. They are very responsive and will go above and beyond to help guests' unique needs. The apartment is clean and exactly as described. They even had a welcome basket with some snacks for us upon arrival.
The only downside for me was the location, as being so close to Termini is not ideal. The station is pretty rough and the people around the station aren't the best. But if you are traveling via Termini Station, this would be pretty ideal. Plus, it is still walkable to all of the major monuments and attractions in Rome. And considering the price, the apartment is a great value.