It is a mystery to me how you can make such a decent trumpet so cheaply in the trade. I bought the product from the Far East with a guilty conscience because my wallet didn't want to give up a German product. The rotary valve runs very well, The material walls are slightly thicker than on my previous trumpet. This has a positive effect on the sound. The small soldered joints are not as clean in the micro area as on instruments made in Germany. But you can't hear that. Time will tell how satisfied I will be with it. At least the price-performance ratio is definitely right.