The place is very calm and remote, offers an awesome view and a lot of space. The temperatures are colder than down in Arco, which makes the place enjoyable during hot summer weather ;)
The house itself is equipped very well and the owner is awesome. Communication was fast and easy and they are very friendly. They took care of all concerns we had and provided for example extra drying racks when they recognized that we have too much clothes to dry.
The house also includes a garden with a trampolin, swings and other game equipment. An outdoor kitchen and BBQ is available as well as deckchairs and a hammock.
The way getting there is challenging (compared to a normal road) but manageable with a normal mid class car (at least under summer weather conditions no 4 wheel drive required - as stated in other comments).
Although we needed some extra minutes to reach climbing rocks (compared to Arco) we would choose this place again, as we enjoyed the evenings up in the mountains.