This is a very well designed product. It is perhaps not a great value for the homeowner, considering the price-tag, but should last a life-time. With a little practice, I was able to sharpen knives to the point that they would shave, but I found that in order to get them to this point, I needed to run them through the last stage of the sharpener very slowly. This seems to hone the edge to the extent that is needed to get that "razor feel" sharpness. This purchase was a bit of an exorbitant splurge for me, but somehow seems worth it as I love the quick and easy approach to maintaining a mean edge on my array of kitchen knives.