I'm another person who uses the moulding toolpath every day. An example for us would be MDF doors. There isn't anywhere near enough resolution on a 49x97 inch sheet of MDF to do them with carving toolpaths, and in addition, the difference in how clean the paths come out with the moulding toolpath versus carving, even on a small door where you're not trying to do the whole sheet, is pretty stark. For me, this addition to Aspire was a Godsend.
Other place where the moulding toolpath shines is on large curved crown moldings. With carving, you either have a choice of rastering up and down the profile to get a clean outcome, which is deadly slow and doesn't leave a wonderful finish, or to try to use the offset strategy which gives truly horrible results. The moulding toolpath follows the curve of the moulding beautifully and gives a really nice result in fraction of the time.
Any place where you have a regular profile with steep curves, the moulding toolpath is almost always going to give you a better result with much faster cutting times because it uses vectors, not pixels, to lay out the toolpaths.
One thing I would love to have added to this toolpath would be the ability to use the vector selector to lay out the paths (there are some weirdnesses that would make this a little tricky to set up, but not impossible). This would make our MDF door production a dream, as I could use toolpath templates for everything on the doors.
D&S Artistic Woodworking http://www.dsartisticwood.com