Quote Originally Posted by Steve.Sanderson(UK)
On a serious note though, Impression allows you to link to a CAD file a bit like an xref, so if you make changes to a dwg the impression file will update where as other methods including non-Autodesk products that I've come across to get a hand drawn look don't, so can become time consuming if changes are required (and they normally are).
I would imagine that that is quite impressive for someone who is into that sort of thing.