I stayed here with my girlfriend for 5 days in January. Travelling from the UK with my girlfriend (both of us 22), I really appreciated the help our host, Ortensia, offered us. She gave a fantastic guide to the local sights, restaurants, gelato parlours and more! All of these were spot on and served to make our trip even more enjoyable. I cannot emphasise enough just how helpful Ortensia was - she was available to contact at all hours of the day and even allowed us to store our bags somewhere when we checked out.
The Airbnb itself was perfect for us. Very clean and had all the necessary amenities (big comfy bed, nice bathroom, Netflix, good wifi, safe, etc.). The location of it was also ideal, only 100m or so from the Vatican. Despite this, there was no issue with noise and it was still away from the beaten tourist path. Even with the great transport links (probably an hour round trip on the train to Fiumicino airport), we actually walked to all the main sights. Its probably about 40 mins walk to the Colosseum (the furthest attraction away) but certainly doable.
I would definitely reccomend this amazing place!