Maria is a really outstanding host. She is Extremely welcoming and nice.
The flat is super clean and tidy with all the necessary facilities. Several electricity adapters for Italian sockets in the flat really saved my life. Nice view on the mountains is guaranteed.
Campitello ski lift is in 5 minus walking. It may be a bit overloaded early in the morning but becomes pretty free closer to 10:00
So, I highly recommend staying there if you want to ski Val di fassa. Maria is a super-host! :)