Guido is a wonderful host, available and helpful. We had no problem getting in touch with him, he was waiting for us to arrive (we had a late night flight), he also helped with a taxi and the luggage on our way to the airport.
The apartment was clean, looking exactly the same as on the pictures on the site. We had everything we needed, and had a really great time in Rome:)
I sincerely reccommend Guido and his place to all travellers looking for a place to stay in Rome.