The best is the Location
You can walk almost anywhere from there, but also you have metro stations quite close. Fashionable street between Piazza Spagna a Piazza di Popolo.
The apartment has a great space and is not that noisy even though is close to a Main Street; however, you might hear some days groups of people talking loud coming or going to party.
Apartment was clean, good wifi, and communication was swift and instructions very clear with Andrea.