Awesome apartment in a great location.
I've made many trips to Rome and this is one of the best Airbnbs that I've stayed in. It is in a great location close to Campo de Fiori, so right in the middle of everything. The apartment has been renovated to a very high standard: a modern bathroom with plenty of hot water, a modern and well-furnished kitchen, comfortable bed and furniture. Lots of good restaurants in the neighbourhood (Roscioli!).
The check-in process with the host was very smooth and she was very helpful.
The flat is in central Rome so there is a bit of street noise at night, but that is to be expected in a city. The window has modern glass, shutters, and a curtain to help dampen the noise. It didn't bother us. The apartment is on the US 2nd floor (UK 1st floor); there is an elevator but we always took the stairs.
We stayed in the apartment in December and the modern heating unit worked well - we were comfortable. It looks like it was a combo heater and air-conditioner but I can't speak to the effectiveness of the latter.
Overall, it was a great apartment with a great host and I would highly recommend the apartment to friends and family.