I tried the Soul 7 at a demo day at Okemo, VT on hardback and some small bumps, just 2 runs and didi not love them. Felt like the whole front of the ski was flopping around, would have liked something a bit stiffer for rebound in the bumps.
However, I rented a pair for the day last Thursday to ski powder and cut up pow and crud mostly in the trees at Whitefish, MT. Thought I should try them in their element to see what the buzz was all about Liked them so much I kept them for Friday as well. It was my first experience with a rockered ski and man did they turn easy. all I had to do was think turn and they came around. Amazingly they also cut through crud smooth as buttah. The did want to squirrel around a bit when driving really fast and straight but when on an edge they were quiet and stable.
Mostly skied in about a foot of snow and mostly lightly cut up pow with untracked mixed in. We hiked the terrain where they are going to put in a new chair and found plenty of untracked, bottomless pow and the Soul 7's were wonderful in that as well.
I am 6', 215lbs and skied the 188's. The skis skied light but felt heavy to carry so I assume that was the rental bindings. I am going to get a pair for next season and retire my old Solomon 1080 Guns. the 188 Soul 7's will be my "big mountain" ski mainly for western trips as I agree with the previous posters when they said 188cm is a bit long for tight, eastern trees. I have a pair of G3 Sainte's set up with AT bindings for skiing places like Jay Peak and Stowe.