We stayed 4 nights in Isidora's apartment. The trip was very smooth - Isidora quickly answered all questions and gave good tips. The transport was easy (in about 30 minutes one can reach the centrum) although during the evening (after 10 pm) there is not so many buses from the metro to Torpignattara. The apartment was comfortable and as described. On the minus side, if the weather is a bit too cold for May, as it was for us, the nights in the flat may be cold. We had to put two extra blankets :) But overall, we are satisfied with our stay.