I played here in 2016 as part fo the wedding celebrations for the daughter of a friend and colleague, Tim T. This is one heck of a target golf course. Play well, no worries. Go off line even a bit and look out! You will lose loads of balls.
This is a link to a pretty cool series of videos on each of the holes on the course: https://www.destinationhotels.com/stowe-mountain-lodge/golf-courses/the-mountain-course/hole-by-hole-video-guide
I really enjoyed the course, probably because I played quite well. Others had a tough time as it's very easy to lose balls on this very tight course. The views are spectacular.
There is another course, The Stowe Country Club. It's not as good a course, but a fun place to play all the same.