We absolutely loved this apartment and the neighborhood. The apartment: we are a family of three and the pullout couch for our teen son worked well (and it was super easy to open and close, no hassle there). The bedroom was comfortable and the bathroom was small, as others have remarked, but this was no problem for us and everything worked fine. We used the kitchen for some simple meals and it was perfect for that, and for storing the great cheese and salami we bought nearby!
The neighborhood itself is wonderful with the market in the Campo, caffe's, bakeries, and fun shopping on Via Giubbonari. In addition, the location is perfect for visiting all of the major sites. We walked to the Colosseum, the Forum, Trastevere, Jewish quarter, Piazza Navona, Spanish steps, etc. We took a cab to the Vatican Museums and walked back from St. Peter's Square. It took a little planning to avoid melting in the summer heat but having this lovely apartment to return to, stocked with the yummy snacks that we bought in the neighborhood, was wonderful. There was also no shortage of great restaurants nearby. Paolo & Franziska and also Emanuela were extremely helpful in arranging everything and also answering any questions we had. Highly recommended.