This sharpener puts a fine sharp blade to most all indoor knives. To get the best edge it's important to read the instructions carefully. Failure to do this might lead to disappointing results. I say this because there are two speeds and two sharpening angles on this machine. To use either one incorrectly will pretty much ensure you get a less than satisfactory edge to your knife or work tool.
With that said, I've noticed that it's best to stop sharpening a blade when the tip of the blade is centered on the flexible abrasive belt. This ensures the tip is not rounded but is kept to a sharp point, if that's what you want.
The Mark-2 uses flexible abrasive belts similar to sandpaper belts to do the sharpening. There are a few different types that come with the sharpener, each with a slightly different use.
Work Sharp, the manufacturer of this sharpener, recommends you visit their YouTube video for an indepth look at how best to use this product. Below briefly explains what you'll find when you inspect this sharpener:
1. It has two sharpening speeds, Low and High. Low for sharpening indoor knives, and High for grinding tools, those usually found outdoors.
2. It has two angle positions, 20 and 25 degrees. 20 degrees for your kitchen and pocket knives, and 25 for outdoor blades and tools.
3. It has a front edge guide that supports and guides the knife during the sharpening process, very helpful.
4. The manufacturer recommends that you learn certain procedures and methods while using this Mark-2 no matter what knife you're sharpening. For example: Place the knife in the slot; Turn on the sharpener; Draw the knife through the machine. Mixing these up will result in poor performance and a less than razor-sharp knife.
Owners of the Mark-1 may find that the Mark-2, with only two angle settings and only two speeds, does not compare favorably. They'll be satisfied with their Mark-1, I'm sure, and won't find the Mark-2 worth the "upgrade."
I have always sharpened my blades with an angle grinding wheel, but love the ease of use with the Mark-2. It takes the guesswork out of sharpening.
I found no cons with this product other than it may be considered pricey to those used to using a grinding tool.