If this apartment is available, then book immediately! This is a real gem.
This is our 2nd trip to Rome and both times we've used Air Bnb. The advantage this time round this that Serena's apartment is in the heart of the city, but located in a quite back lane; so you avoid the crowds and noise of Rome.
The Spanish Steps are 7 mins away
Trevi Fountain 5 mins away
Barbarini Metro 2 mins away
Coop Supermarket 2 mins away
Bus stops all around
A million places to eat

On morning we went to Trevi at 7.30am and had the fountain to ourselves, then went to breakfast at one of the many cafes in the area, and everything was an easy walk from the apartment.
The apartment itself is well equipped with everything you'll need. There's also a Nespresso machine with a number of breakfast items. Everything is super clean and well cared for.
Even though we're in the back lane way it felt very safe. There's a Carabinieri post about 50mt from the apartment which is constantly manned. A few nights we came back late and never felt unsafe.
Serena is also a wonderful host and easy to communicate with.
We're looking forward to returning to Rome and will make sure to look out for this apartment again...thank you Serena