The neighbourhood was quiet and looked safe even at night. The only noise we could hear was from neighbours with a small child few times in the morning, in a week period, so this didn't bother us that much. The appartment was as described and spacious for 4 people. The only thing that also bothered a little was that you had to wait for a hot water for some time and since there was a boiler (not central hot water), it run out very quickly (but maybe it is common to have a boiler in Rome :)). Everything else was very good and it was very nice that there were a lot of stuff left in the kitchen! Moreover there were some helpful city guides left on the table. The most important thing for us was late checkout since our flight was at 6:35 am and it was not a problem. The appartment is near railway station and you could reach the center after ~30 minutes with one change to metro (walking inclueded). I would really recommend Raffaella's appartment for comfortable staying in Rome where you can see how regular Italians live :)