I know this thread is old but sailun is my #1 selling tire brand and I manage an auto repair shop. I have NEVER seen a sailun fail on it's own and the sh408, tcon, terramax, and svx have all been phenomenal. I have sold hundreds and never had a single complaint except on the sva1 which is a summer tire, the sva2 are great though.
I'm telling you, you can't go wrong with sailun especially for the price. They last better and have better traction than tires 50% higher in price.