Great clean spacious room, with private bathroom and balcony, and with shared kitchen (with sink, fridge and dishes, but no hot plate).
All really perfect. Obviously the acoustic is not the best but as far as I know, it's quite often on not new Italian buidlings. But very tolerable since the appartement is on the 6th floor. We can be very sensitive about this, but we had no problem.
The location is OK, but has nothing to do with the apartement, so cant take that into consideration since the location is perfectly informed. Just be prepared to walk or use public transport if you want to properly visit Rome. On the other side you're just near the train station, which can be usefull. Like a lot of train station neiborhood, the streets can look sometimes a little unsafe, we it was really safe and we had no issues at all during our 7 days stay, even though we sometimes went back quite late. It's just very popular :)
Overall, a perfect place to stay in Rome if you cant afford a more expensive one, in the center of Rome.