I bought this cutterhead in Dec. 2016 for my jointer. I knew beforehand that it would be fantastic, because I upgraded the cutterhead on my 18" planer a couple years ago. Install was straightforward and went without a hitch 'cause Grizzly includes everything you need for the swap out. I have already put several hours on the new cutterhead and yes, the smooth is worth it. No knife marks whatever on walnut, maple, pear, or even madrone. Impressive!