Well, as for the skiing tips I think he does alright through most of the intermediate levels, however, in the advanced segment limitations start to present themselves as we move into the more difficult aspects of skiing, particularly in the skiing stacked, moguls, and powder segments.
As for the App, I find it incomplete. It should have ALL the lessons available in order and add the new lessons added on as they come. I had to fish around way too much to find some of the lessons
analraynal about Ski School Advanced, v2.0