Bests & Worsts Reviews from Amazon

I just finished sharpening the knives in my knife drawer with the M130. Some of the older knives took a while to get a burr in step one but once the burr showed up even my older dull knives were sharp again. My every day knives sharpened in less than a minute. My best knives sharpened in a few seconds. The middle position is not motorized. It is a quality sharpening steel like you use by hand but this position keeps the knife near the optimal angle so the steel works optimally. You don't turn the motor on to use the middle position so you can walk over to the sharpener and put a quick hone on your knives without using any electricity. This is the big difference between this model and the Chef's Choice M120. For the extra $10, I prefer the sharpening steel over having a second grinding wheel. The third position is a "polishing" wheel which is similar in effect to the old barber shop razor strap which smoothed and polishing the knife edge. I like the 20 degree grind used by the Position 1 wheel and see no need for an additional wheel used to change the grind angle in the Trizor system used in the M120. I have a wide range of quality in my knives and this system seems to work well on all of them. I don't have serrated edge knifes since a well steeled knife works as well for me. I won't spend hours using an oil stone to sharpen knives any more. Also at 55 years old I don't see as well as I once did and can't hold a consistent angle using the stone. This system gives you a consistent sharpening angle. I sharpened 10 knives in less than 15 minutes with some them being quite dull. I thought about giving the M130 4 stars based on cost but it saved me so much time, the cost was worth it. UPDATE: I've been using the M130 for two years now. I use it daily (sharpening steel plus polishing wheel) on my best kitchen knives (Calphalon Katana Series) and they remain super sharp under constant use for about a month before I do a touch up with a single pass under the grinding wheel. I don't hand sharpen any of my knives now.