This place was great, seriously! It is so close to the Vatican wall, that you could throw a stone into it :D
There's nothing what we could complain about. (Maybe only if you have 120kg and more, the shower might be a bit small. But this is not our case).
The kitchen: Not only there is all you might need for cooking, but also all basic cooking ingrediences such as olive oil, salt, pepper, etc. (We left there some pasta :) )
The host (Mary): Very friendly and helpfull indeed. We had the problem, that our flight came late at night, so we came to the apartment only at 01:20 a.m. No problem at all. There was somebody waiting for us for a small fee. Then on the last day she allowed us to stay a couple of hours longer in the apartment, because my girlfriend had a cold and it was not the best idea for her to just walk the city waiting for our evening flight.
So in summary a very nice apartment in a good location with a very nice and helpful host. Definitely recommended. Next time in Rome, I will book it again!