If you choose or hesitate (like I was) - just book it!
I've been 8 times in Rome and it was one of the best my airbnb experience.
1. Ideal location. 10 min. walk from Termini. Very Roman dictrict - Monti, where you can enjoy and see typical roman life. It also close to all the attractions. If you lazy enough to explore the city by walk there's a bus stop from 100 meters. SPAR supermarket is 2 min walk also.
2. Room is spacious, bright and clean. Nice bathroom. Fast reliable wi-fi.
3. Perfect breakfast and kitchen which you can use throughout all the day.
4. Enrico is very nice guy.