ANSYS has packaged in the AIM some of its basic and robust capabilities, in a streamlined logical workflow GUI, slick with consistent details. AIM initially includes linear structural, thermal and electric conduction FEA, and CFD - with the ability to create certain interaction between those simulations, all under one GUI with consistent dialog boxes. Sweet. But the best is yet to come as mature ANSYS capabilities are migrated to AIM like nonlinear structural or topology optimization, and as new capacities are attain by ANSYS like true polyhedral CFD mesh in place of the current one made by aggregating lower order elements.
Another good think is the integration of ANSYS SpaceClaim parametric direct modeling 3D CAD. This tool is already quite good for creating geometry, modifying/de-featuring/repairing/healing for simulation. It also has unique capabilities of working with STL geometry either directly or in hybrid STL-solid approach. There is no known limit to the number of faces in STL file imported to SpaceClaim. There are mesh repair capabilities. That already makes happy the AIM users who need to work on STL files 3D print. But wait - there is more coming: SpaceClaim will have the capability of converting STL regions to CAD surfaces.