Marco is a great host. He was kind enough to wait for me at the nearby train station. I could contact him easily by WhatsApp or by phone, when I had any questions.
The apartment is in a nice location, only 5 minutes walking from San Pietro station, close to a bar, and you can get quickly to Vatican City!
The apartment is very nice and cozy, and even though I was alone, fits at least 2 people.
I really liked my holiday here, and the quality is very good for the price, even in during summer season.