Good review and nice pics. I had the pro version for a while which comes in a big plastic box and makes you look like a serious knife sharpening dude. It works well if you have a bunch of big knives to sharpen. It doesn't work so well on small blades like the sloyd carving knives I work with. I also found it was a bit of a faff getting it all out and set up for an odd knife, perfect if you have 1 dozen kitchen knives to do. Mine got sold on and I go freehand on waterstones, it was an interesting experience using it for a while though.