I thought I would share my first use with the Chinese stone. When I received the stone it needed to be flattened like all stones. I used a Makita oscillating palm sander using 100,220. and 320grit in steps. That really was fast and it worked great. I started with a Dovo stainless blade and went at it. It takes a while and it is a slow stone but it can make a razor seriously sharp. I have other stones like Shapton's but I can't fault this very low priced stone. YMMV but this chinese 12K stone is a class act regardless of its low price.
Jerry1