When using a great mouthpiece for jazz purposes, this instrument can sound absolutely great. I primarily use it with a Jet Tone BM and that makes for easy playability and a very good tone, but...
The main question is how much you're willing to pay for not just good, but spectacular tone. I also happen to have Jiggs Whigham's King Legend signature and using the same mouthpiece, you can hardly compare the two instruments. Especially the higher notes are just downright beautiful and gorgeous on the King (it's also much lighter, by the way). The King just blows everything out of the water, but the pricetag is also 10x as much. Considering how this Thomann instrument is rediculously cheap however, it really becomes the question of whether you want to settle for good tone, or that you want legendary tone. That is for you to decide as 'quality' is in the eye of the beholder. Personally, as I thankfully have the financial power, I would absolutely buy the King again, though this relatively impressive Thomann instrument really makes me doubt that decision. Well done on your part, Thomann.