I've had this dado set for about a week and finally got around to trying it out.  This set replaces an old, but hardly used, Craftsman 8" dado set that I had used on a project or two with Ok results.  The bottoms were flat enough but the edges were burred and the blade had no shims available which meant I had to make two passes with a 3/8" setup in order to get 15/32".  Oh my gosh, what a difference this Freud set makes.  The dado cut is perfect in every way and the blade cuts much faster with a lot less effort.  I almost didn't purchase this dado set because of some of the negative reviews.  It is has been my observation that many times negative reviews have nothing to do with the product which is particularly unfair and irritating; other times negative reviews come from incompetent boobs who don't know how to use the product; finally, negative reviews come from negative people that always post negative review, as if it is their job to nit-pick everything.