We have spent 3 nights in Christian's studio. He is a really nice host. He speaks very good English and German, and gave us very good tips in getting around Rome. The studio is really small, but for the two us it was fine. The bed is a pull-out sofa which is large and I have found it very comfortable. There is a small garden in front of the flat, located in the building's courtyard. Unfortunately we couldn't sit outside due to the rainy weather. The metro station and the Colosseum are only a few meters away.