I stayed in Emiliano's apartment with my family (my wife + 10-month old daughter) for one month from mid-November to mid-December. For me it was kind of a work-related visit, whereas my wife was taking care of our daughter most of the time. However, we spent almost all or our free time on sightseeing.
The location is very nice, but it was something we picked in the first place before deciding on this particular apartment -- so that my commute time was acceptable and more importantly the neighborhood was exceptional for taking our baby for a walk. Parco degli Acquedotti is just great. We also felt kind of lucky that the nearest metro stop, i.e., Subaugusta, does have lifts working (I believe most of the metro stops in Rome do not).
We found the apartment very comfortable and spacious. Everything I can imagine useful to feel like at home was there -- the living room, including the kitchen segment is well equipped. What we liked the most is that we did not need to bring almost anything that is needed for an infant: a child bed, a tub, a portable high chair and many many toys were all there. I would say this apartment is perfect for families with small children.
Emiliano was very kind to us and responded to all the questions we had immediately.