What separates this from other systems is the multiple interchangeable acrylic pads. And this is where it’s brilliance lie. Here you don’t need to take on and of every grit paper on the same block while sharpening, which is extremely practical and clever considering that quality sandpaper actually holds up to at least 2 sessions before wearing out. At least with regular tool steel. It might not with super steels, but this is rarely found on sloyd tools. In any case it is great to avoid cleaning and stripping on and of all the time. The system as a concept I think is perfect. However, there is one small draw back: the wooden block is just tiny bit narrow, which can cause a slight tilting (especially if one inserts the included non-slip pads) when you get to the belly part of the blade. With a little technique and practice this can be avoided, though. And if you clamp it, it is no problem at all. So, all in all, this is a truly great product, which I highly recommend!