Nancy's appartment was clean and as shown on the pictures. The terrace was very nice. A quiet place filled with plants where you can enjoy meals!
We spent 4 nights there and its location was very central (10min walk from Termini) as we did everything on foot (from Colosseum to Vatican). Note that we like walking and don't mind adding up the kilometers.
Nancy has been very helpful, providing us with plenty of information/recommendation. She has made herself available throughout our stay for whatever question we had.
In a nutshell, we definitely recommend Nancy's apartment for your stay in Rome :)