To begin with let's say about the quality of the instrument and all accessories. Case Solid and fell to my liking. Made of leather, because keep it from scratching. The tool is not in it otstyvaet quickly in cold weather, so insulation is quite good. Native mouthpiece sounds good, I like it (but I recommend to change to something more worthwhile. In principle, as with any tool). Good valve linkage. No backlash is not observed. Everything runs like clockwork. When using the included mouthpiece and reed "Rico Royale" 2 size, the sound is more docile and jazz. With his cane, "Van Dorn" 2 size sound more restrained, classic. I recommend this tool for beginners and amateurs because of the low price, but good sound.