We enjoyed our stay very much. Fabio picked us up from the train station and dropped us off at the end of our stay. We discovered that the shower was not draining well and he had it fixed within a few hours while we were out sightseeing.
The room is clean. Kitchen is well equipped. The castle grounds are amazing to just walk around. There is also a cat you might meet. :)
As others mention the one euro, 15-20 min train ride to Roma Tiburtina is easy. From there you will have to take the metro to other sites in the city so factor in travel time for that. For us the trade off was worth it.