ACM high concentrate Diamond paste

Hi, My first post here. I'm sharpening by hand for a couple of years now with mixed results. Sure my knifes cut paper clean and shave but it's always been a hassle. Found the Outdoors55 Chanel by chance and bought the classic Sharpal 162n and a strop. Much better results but still not perfect. I found this ACM diamond paste in an online shop here in Germany. 40g 12% diamond content, ±1micron and 19$

I have to say it's amazing stuff. First time use hair wittling edge with 6 and 1 micron. It's so much paste and you need so little that I could probably make 200 straps with it. I'm now interested why I should by something as expensive as gunny juice for example?