I have it, boxed and with a full set of manuals I am pleased to say. I am a big fan of the old Claris software titles, and snapped this up on eBay a while back.
I have not used it much of late, but it is a very able and user-friendly 2D drafting program, very much in some ways like ClarisDraw but more obviously suited to technical use in industry, architecture, and the like. It would be the sort of program with which you could design floor or kitchen layouts in a builder's office, but not, let's say, the hull sections of a boat.
So it has its limitations. Its great feature is what you could call the ratio of its power to its system requirements: in other words, it did a lot FOR THE TIME, yet ran well on hardware from circa 1992-93. One suspects that it was eclipsed by the switch to ppc on the one side and by development of the many 3D/ CAD drawing applications that were to come on the other, and which did everything ClarisCAD did and a good deal more. Like much else at Claris, when the competition appeared, and especially when Windows software rose to the same graphics-savvy level, the product was effectively abandoned rather than further developed.