We stayed at Roberto's tower for 4 nights and had a great time. The location is perfect for exploring Tuscania (and beyond), Roberto was an excellent host, providing valuable information about the property itself, and also Tuscania, and responded to messages very quickly, which was helpful. The property is well-equipped, has plenty of space, although it's split over 3 levels, so bear that in mind if you have young children, or people who struggle with stairs.
The roof terrace has fantastic views. The property felt very secure and safe, and even on hot days, stayed relatively cool due to it's thick walls. It's been very nicely renovated inside, with modern touches, and Wi-Fi.
A highly recommended place!