The apartment is nice and has almost everything you may need. It is really big and cozy in the same time. In reality it looks a little bit more worn than on photos, but not that much that it could bother you. Another thing you have to take into consideration is the mattress, it was very stiff for us same as the pillows.
Stefania is a very nice host and always ready to help you if you need.
It is located close to Vatican in a very quite area. There are some bus-stops, where you can catch busses to the centre.
In general we are happy about our stay.