It is not a pametric modeler. Dimensions are driven by the model vs parametric programs where the model is driven by the dimensions. It is real very easy to use and other than compound curved surfaces comparable to Solid works and ProE (I also run these) in the models you can roduce. Building assemblies is actually much easier than those two programs "docking" components and you can update assemblies automatically when components are revised.

Mechanical Desktop 2007 now has a sweep command that allows you to make threads on solid parts and many of the other shapes formerly available only in SW, ProE and the high end Unigraphics and Catia systems.

Transparent parts, textures and materials are easily created and modified.

Not familiar with 3D studio and such but have seen images way above what I think Acad can do. Hope this helps.