The location is wonderful, it was easy to get to and from the Metro. Expect lots of traffic, though. The street is small enough that it seems it should be foot traffic only, however cars and motorcycles fly by. So be careful. The restaurant directly below the flat is amazing - I recommend dinner there.
The space is clean, charming and cozy. And for a busy area, the sound doesn’t travel into the area. There are balconies on both sides of the apartment where you can people watch and enjoy the busy life of the Neapolitans.