I have spent one month at this apartment, which fulfilled all of my expectations. It was very clean and spacious, whilst including everything one would need even for a longer stay. The area Casal Bertone is not the cleanest to say, and it is not so much connected to the centre of Rome (especially with infrequent bus lines). However, if you do your research on the area and decide to stay there, I can only recommend Giuseppe's apartment. He was always very helpful and was easy to contact as well.