Cristina is a really nice and warm-hearted person. If you speak Italian you have the advantage to have nice conversations with her in the kitchen! Once she also offered us some delicious chocolate croissants.
The room is big and the bathroom/kitchen was always clean. The location of the apartment is really comfortable, because it's a few minutes walk from the metro station San Giovanni and about 20 min walk to the Colosseo.
It was my first "airbnb" accommodation, but I don't need previous experience to say that I had a really nice and perfect stay at Cristina's!