I have a few knives for EDC and for my workshop, as well as the usual kitchen knife set. I’ve never been happy with the performance of my little Smith’s 2-step, coarse and fine, knife sharpener. I’ve tried using a stone and failed miserably..After field dressing a deer, this Fall, wishing all the while my knife was sharper, I decided to check out some knife sharpener reviews on YT. The Work Sharp Precision Adjust seemed excellent value at just $60, had great reviews and was simple to operate. I ordered it..The Work Sharp Precision Adjust is indeed very easy to use. The knife holder has some flexibility to it but to use this sharpener correctly, you do not apply pressure to the stone on the blade. Let the stone do the work. You just move it back and forth. The flex therefore becomes negligible..My first attempt to sharpen my fixed blade deer knife was good but disappointing in that I couldn’t slice through a sheet of paper. It was sharp but not the promised sharpness. I couldn’t establish the original angle off the cutting edge since I’d changed it with my failed, manual, diamond stone sharpenings. I essentially had to reprofile the edge. This is where I found the Work Sharp Precision Adjust was lacking. It took forever with the lowest grit of 320. Eventually, I sort of got there. Same with my next knife and similarly with my small kitchen knives. All needed some reprofiling.A day or so later, after watching yet more videos, I revisited my knives. This time, I was able to spend a little less time and managed to achieve that awesome paper slice. I think I was able to refine the new profile this time, having remembered the angles I’d used, and didn’t get frustrated like the first time. I also used a 15x loupe to see the edge detail. That’s now a permanent accessory in my sharpening kit..I concluded that 320 grit was just too fine for an effective reprofile, especially on a longer knife, or one heavily chipped..I considered returning the $60 Work Sharp Precision Adjust and buying the Work Sharp Precision Adjust Elite kit for another $60 more. The coarser 220 grit included in that kit would no doubt make reprofiling a lot quicker. Then I reckoned that it was just as cost effective, if not more so, to keep what I had and order the upgrade kit. Yes, that is $80 more. However, I keep the existing 320/600/ceramic sharpener from the original Adjust, adding another 3 sharpeners, with one set being an extra of what I already have. You can order new stones for around $7 each. So, I’m actually getting a spare set of 320, 600 and ceramic stones, including another holder, for only $20, versus over $21 for just three individual stones. Better value to spend the $140 for the Adjust and the upgrade kit than the $120 Elite..Tonight, I used my now-upgraded kit on another folding knife I keep in my truck. I’ve never sharpened that one and it was pretty blunt. I used a Sharpie pen to help establish the cutting edge profile – 25 deg. Starting at 220 grit, it didn’t take long to make the first pass. I moved through each of the stones, refining the edge each time and finished off with the strop. I already have a large strop but the Worksharp strop, keeping the exact edge angle used to sharpen, makes the final step a no-issue breeze. You won’t easily get a mirror polish finish, (that will take more time with the finer stones and ceramic) but without the loupe, the cutting edge looks shiny, clean and it’s razor sharp. That’s all I’m after!.I think that, for the money, this is one of the best sharpeners out there. It’s easy to use once you try it a couple times, and the results are awesome!I do suggest you get the upgrade kit though. Whether you buy the Adjust plus the Upgrade kit, or the Elite itself, you will need those additional stones for reprofiling with ease.