Valentina’s apartment was awesome! We weren't aware of just how perfect the location was. We thought we were on the back-end of the Vatican, but you are actually right by the museum entrance, which is where you want to enter from to see the Sistine chapel (GO EARLY!!!). Her apartment was super clean and perfectly spacious for a couple visiting Rome. The wifi was also great with no slow speeds or dropped connections.
She met us at the apartment perfectly on time after arranging a private transfer from the airport, which at the same price of the local taxis was a way better option to go for. The driver meets with you inside the airport as you exit from arrivals, and he leads you out of the area to a private luxury vehicle.
The check-in was prompt, on point and she is extremely friendly with lots of tips on the surrounding area. She's also gone the extra mile in creating 2 books with points of interest and how to get to them - far better than generic tourist maps!
On transport - get a metro pass for 7 days (if you are there long enough). It allows you to take the metro lines, busses and trams which will serve you well. There is a metro entry just 2 blocks from her. We walked over 125km while we were in Rome for 8 days, so being able to hop onto a bus, tram or metro was welcomed many times.
In short, you can't go wrong with her apartment for value, location and tidiness.
Enjoy Rome