I’ve used Pro E as my primary solid tool for 7 years since Wildfire 2 and witnessed all of the UI changes that have come along with it, and that includes spending time in Chicago @ Design Engine for a Pro E course. I am complaining about the UI because it has gone from suck to less suck - and that’s with a laundry list of CAD, 2D and 3D tools under my belt. There are simply logical inconsistencies, mental models and flows which will apply to one tool but not another, and other behaviors that are simply far smoother in other tools. Regardless of what I think of it, it is not nearly as easy to pick up as other tools for surfacing and is worth the investment for professional training. If it were that easy, Design Engine would be out of business and the people in this thread would be referring him to Lynda.com or some other Youtube video.