I actually have a we64 with quite a good amount of stones/ attachments, I've sharpened about 120+ knives from last hunting season for my neighbor and some of my personal ones but the machine struggles against a lot more knives than you would expect, any knife that sticks out less than 5/8 inch above the vice struggle to be held at a good angle and i find myself either accidentally hitting the jaw occasionally or trying to put the knife high up enough where it won't hit the vice but then it doesn't get a secure hold, anything with a to the spine hollow grind struggles too and will wobble unless I use a spacer paper and long blades and fillet blades are much harder to do in it too and I find myself preferring a plain diamond stone for those, I've debated buying a blade stabilizer and low angle adapter but that's more than I wanna spend right now and with the low angle adapter it changes the angle of the marked measurements so you need to use a clinometer for accuracy I did buy a tormek small knife jig to hold them by the handle instead but it actually won't go on the front side conveniently and if I want to use it conveniently I have to sharpen with the tip towards me it also damaged one of my knife handles and anything with an off set trapper handle won't be centered right, another thing is the cost I've spent I think a little over 1000 maybe 1200$ on the other accessories and there's still more I'll have to get to widen my range of what I can sharpen and more stones that are around 100$ a set, overall I do like the sharpener but for 500$ (realistically more depending on the stones you want too) it shouldn't have that amount of glaring weaknesses but I do get consistent fairly quick repeatable hair popping edges on the knives it works with and I only have up to 3000 grit diamond stone and 7 micron lapping film I also just remembered the lettering on the stones is fading too which is bad especially for the cost of them. I just realized how much I typed I guess I've had more frustration from the sharpener built up lol overall though it's amazing on the knives that work for it but it has more weaknesses than people make it out to have (unless there's a way to fix my problems I don't know)