The link between Frame Generator and Frame Analysis is great. I love how it creates beam elements form the model and automatically creates rigid links where appropriate and I am amazed with how easy it is to accomodate design changes and work with Levels of Detail. I've been hoping for something like this forever within Autodesk Simulaiton Mechanical (back when it was ALGOR).
I think it would be a significant improvement though if you could export the beam model into Autodesk SImulation Mechanical, where the capabilities are so much greater.