We have been in Arco for rock climbing and have stayed in Simones apartment for one week. The space is incredibly clean and perfectly located in Arcos historical center. From the balcony there is the probably most beautiful view in town and it was absolutely wonderful to have breakfast or dinner there.
Simone is very kind and helpful. He slept downstairs on the couch of the open apartment but we did not notice him much because he left very early in the morning and came home again very late.
Simone kindly asked us to not cook "big", but cooking pasta or potatoes was ok. We were too tired anyways after rock climbing the whole day. But you should probably talk with him first before you plan to cook your Christmas-Dinner there ;).
We would definitely recommend this apartment and be happy to return in the future.