Vittoria and a friend of her welcomed us at the agreed time to show us the property. She's a lovely teenage who was very kind to explain everything we needed.
The place is exactly what you see on the pics. We were two adults and I didn't consider necessary to make the owner aware that we wouldn't be sharing the double bed as I assumed all beds would be ready (my bad perhaps). I ended up sleeping on the mattress cover because, as kindly explained by Giovanni, it was difficult to get the sheets within the 4 days that we were there due to a bank holiday and tight schedule of the cleaning company.
The location is great, with the metro and many bus stops within walking distance. There is a Carrefour Market, several restaurants, many coffee and souvenirs shops around the area. You won't need much more to enjoy your days in Rome. Towels and shampoo are provided and there're some DVDs to watch and a couple of travel guides to prepare your trip if you haven't already. There's a lift in the building, but you will need to walk to the first floor to use it (bear this in mind if you have some difficulties to do so).