The tools semms to be an average quality tool, but the spring of rail holder has been already broken at receiving the package.
Quality control should be poor. I'm interested for the quality of the sockets also, but I cannot judge it now, should be used for months to tell something.
The socket set is not super cheap (can be found for alh of the price too), also not expensive. The quality cannot be compared to Brand tools like Gedore etc..Still, I hope it will last long.
I noticed the shop about the broken spring, still waiting for reply..