This is a great airbnb for a solo traveller, couple or two people. (If you need two beds, you will need to ask Manuel).
The flat is a 2 mins walk from Rome Termini train station which means getting from and to the airport is really quick. The flat is on the 5th floor of an appt building which has a lift/elevator which you'll need to use after walking round the historic capital. The main bedroom is really comfy and modern, it has small but nice bathroom and kitchen areas but the best part is the covered balcony which is perfect for a morning coffee/evening aperitivo. Check in was really easy with Manuel, he met us at the flat.
The flat is about a 20 mins walk from the Colosseum, a bit longer to the trevi fountain, pantheon and spanish steps.
The one slight issue we had is that the key to the front of the appt is a bit fiddly. Once we worked out how to use it, it was simple. Make sure the key doesn't go all the way into the lock and slowly twist it and it works!
I definitely recommend this flat as a base to see Rome but to also see other parts of Italy as you have the train station on your doorstep.