I borrowed one from a buddy for a while. He liked his a lot, and wanted it back even though I loaned him a Spyderco Delica in return. The steel seems harder than usual, but I dont recall any chips on the plain edge. The serrations were a little rough, but after all they are ground at about half the angle of the plain edge section. AUS-8 is known for taking a very sharp edge, and this has been my experience with it as well. Since this seems a little harder than normal, it took an exceptionally sharp edge and seemed to hold it for a while, certainly the time I had it on loan. The blade is ground thin just behind the edge, so it cuts quite well. Since it was a loaner, I didnt test it really hard. I cant comment on ease of sharpening, since I sharpened it on a belt sander. It sharpened just as quick there as any other knife I've tried. The thin edge means that less metal will need to be removed to sharpen it, so it should sharpen pretty quickly, and without the excessive burr formation found on some softer steels. The blade has a lot of belly, more than I like, and thats basically my only gripe, but one thats fixed easily enough with a 120 grit belt, and a light touch. The rolling lock works fine, although I didnt give it any spine whacks or rough treatement. It hold the blade closed securely, in case you've ever been bitten by an open tip up liner lock in you pocket. In fact it held the blade so securely that normal, smooth arcing motion thumb opening was nearly impossible. I would push on the stud, and it would pop open, often locking right away. If it didnt lock, a quick flick would take care of it. There was no problem with it swinging closed on my fingers if it didnt lock either, the rolling lock prevents that. I used the large one, but if I were to buy one, I think I would go with a plain edge Mini-Ambush. The large one is a handful, even though is got an aluminum handle and isnt heavy.