We had a great stay!
The hosts responded almost instantly on messages, very efficient and friendly communication. Tommasso was very welcoming when we arrived!
The apartment itself was very tidy when we arrived. The pictures are honest: what you see is what you get! The bedding and towels (a small, medium and large one per person!) were crispy clean.
The kitchen has everything you need to prepare a small meal (but you're not in Roma to cook a five course dinner, just visit one of the many restaurants) and there's a Bialetti Moka to make a nice cup of coffee in the morning.
Bathroom felt clean as well.
There is no seating area (no living room), but we didn't really miss it as most hotelrooms don't have a seating area as well.
The location of the apartment is great. Trastevere is a very cozy neighboorhoud. There are many restaurants and stores nearby. The Pantheon is on 15 minutes walking distance, Colosseo and Trevi 25 minutes, Vatican 35 minutes. You can reach the apartment easily by bus from Termini Station (bus H).
Great stay!