It really is hard to express how great of a dado cut this set makes.  I'm building a new set of kitchen cabinets, and I really can get exact dado's for a tight sturdy fit.  My one complaint is that the chippers are not marked...  so you literally have to sit there with a ruler and measure them out to find the small one and the large one.  The spacers are all marked, however, so that wasn't a problem.