My parents and me spent three nights st Cristina's place and we were very glad with our stay. On the day we arrived there was a public transport strike do Cristina picked us from the airport early in the morning for a very good price and less than we would pay for a taxi. The flat is 700 meters from metro station and 1,5 km from colosseum, which was perfect. Cristina was very welcoming so ic you wand to try typical Italian hospitality, Cristina is the best option :). You will find everything that you might need in flat. We were 3, but there is enough space for 4 persons. I have only positive feelings about Cristina and her very typical italian flat so o would come back when I am in Rome next time!