Pigneto is an amazing neighborhood! We felt so lucky that Roberto's apartment allowed us to explore the area, full of cute restaurants (Roberto recommended several really tasty places) and a real down-to-earth feel, with families and without the tourist hubbub of many Rome neighborhoods. It also has a hopping hipster-y night life, but Roberto's apartment is a couple of streets away so it is very quiet.
The apartment can be confusing to reach via bus (google maps is not necessarily accurate, especially because there is some construction going on), so just check with Roberto about directions. It's easily accessible via a metro line, too.
The apartment is super clean and hotel-like, with modern finishes. Recommended for a couple or small family that wants to experience a different part of Rome, not swamped by tourists.