I deal a lot with space and application designers from major systems furniture companies (Steelcase/Haworth/HM/etc). While their CAD and engineering depts dont use it, the applications teams build entire floorplans with it. Also, a lot of interior designers will use it to lay out rooms and build up desking systems and typicals for consumers to get a better idea on what they are buying Unlike office depot, you purchase all parts separately, meaning that the worksurface, privacy panels, grommets, cabinet styles and even the leg variation can create thousands of options. Having a kit of parts allows them to build it in Sketchup rather quickly.
It isnt a very powerful program, and while I have seen people use it for visualization, the preferred program is still 3dsmax or similar sub-D modeling. It is much easier to have complex surfaces in programs like Max. However, Max is highly inaccurate, and doesnt really have a measuring device. We usually go by the motto “if it looks right, it is right” when dealing with Max. This can cause some inaccuracies when building consumer products.