+ Stratasys bought it and made it completely free! + It is a really effective way to share CAD files for collaboration. + It tracks versions. + It is a great sharing tool whether or not everyone is a CAD user. All you need is a browser and you can view files 3D. + It will show the file custom properties (not sure about config specific). + GrabCAD Workbench understands SolidWorks file references, so the parent assembly will be at the top of the file page. And all the parts will show up. + The ease of viewing 3D CAD files makes them much more alive and valuable than if you put them in some regular files sharing site like DropBox. + Good search tool. + Cloud viewer can even handle SolidWorks configurations. (does not do display states, but that is understandable). + It has Owner, Collaborator, and Viewer permission levels... Actually also Partner Spaces, that has a few more related options (e.g. can view files and can or cannot download native CAD format). + I like that the revision control system is simple and unrestricted. (versions are just sequential numbers each time you check-in). Revisions are deliberately selected by a user. So the user manually selects the Revision scheme they want (e.g. Revision: B). + Can Lock files so only one user changes at a time. (others can unlock it though)

Great app with easy interface easy to use, easy to manage and share files. Ability to multiple people to work on it is great as well.

I like the remote nature of GrabCAD. I can work from anywhere on any device and be productive designing with the most current data without having to remote login.