This is similar to the Mountaineers thread, except I'm wondering about OSAT. I have friend in OSAT who has generously offered to get me signed up for their Glacier Climbing Course. It looks great and I'm really excited, but thought I should just check and see if anyone had first-hand experience with them, or had heard anything (positive or negative).
So: have you heard of OSAT or the GCC? Thoughts on their general level of expertise? Anyone actually completed the GCC? I realize I'm asking you to make some generalizations about a somewhat large group of people, but, still interested in any feedback.