[Siri]

The biggest difference I've found with folks transitioning from Inventor to SolidWorks is that they think they still can't do (or it will be very difficult to do) all sorts of things that are actually quite streamlined in SolidWorks. I have far fewer--actually none that I can think of--examples of the opposite direction. The feature parameters, patterning, assembly options, and overall UI and UI customization for SolidWorks all jump out at me. I haven't used Inventor in several years though, so maybe it's improved. I also don't do wiring or architecture, which I'm told are Inventor strong suits.

My top advice: Don't assume you can't do something without checking you can't. The same goes if something seems overly difficult. Also, click around and experiment: I find the SolidWorks UI to be very streamlined, but that means some very useful tools aren't clogged with labels (the rollback bar's functions are a quintessential example for my new CADers). Finally, take advantage of the customization. If you want a shortcut the way you have it in Inventor, move it. If you use something a lot, make it easy. (For instance, I sketch as much with my keyboard as my mouse, using keyboard letters for every common geometry tool I use.)