We enjoyed our stay in this apartment with te four of us. Everything was clean and tidy. The communication with Marco was good, you can always reach him when you need to. The location is near to the Vatican City, but also to the metro and busstation.
We liked the amount of bedrooms, with the same amount of bathrooms. Only thing we noticed is when you shower at the same time at the both bathrooms, one of the showers gets cold and the pressure goes away. We liked to have a washing machine also to was the towels. We surely would stay another time in the guesthouse.