James, It's hard to answer your question precisely. As a former Pro/E instructor I am biased, but I think that at least the first course is very useful and recommended for most users for several reasons. First of all, the design philosophy you are coming from tends to be different enough that a guided overview with examples of Pro/E methods can get you started a lot faster than a lot of "What the **** is wrong with this thing?" time trying to make it do something the way you are used to doing it. Second, there is someone there to answer your questions. In the beginning you could get stuck for days on elementary questions that could be answered in minutes by an experienced instructor. After a first course you may be someone who can learn on your own; folks vary a lot in this regard. I was a user for years before being an instructor and consider myself pretty good at learning on my own. Nevertheless, I found all of the several course I took at that time very efficient at getting me up and running. The courses also include examples of functionality that you might not stumble upon for a long time on your own. Finally, if you have someone in your organization who knows Pro and is good at teaching, that can make a big difference. David