The apartment was exactly as advertised. Silvia was there to welcome us and was extremely accommodating. She even booked a return taxi for us to the airport. The WiFi worked great and the apartment was clean and very secure (there are three separate locked gates entries to get into the apartment). We did not use the washing machine but it was nice to know there was one of we needed it.
The neighborhood was in the heart of the city and location was ideal. We were able to walk to all the major sites. The furthest site was the Vatican which took 30 minutes to walk but everything else was 5 to 15 minutes away.
There was a "city tax" of €3.50 per person per day that was not included in the booking price and that we had to pay to Silvia when we got there. It was not a big deal for us but it would have been nice if it was stated in the listing (Although I don't remember any of the other listings mentioning it either when I checked).
I would highly recommend the apartment to any couple visiting Rome and would stay there again the next time I visit. Silvia was a warm and professional host who took the time to check in on us to see how we were doing. You will not be disappointed.