after some time of use, some design flaws were revealed. Namely, that the coffee grinder is unregulated after a couple of grinds. The locking nut loosens slightly, which causes the scale to go minus 5-7 clicks. You have to adjust it so that the grinding is set up correctly. And no matter how hard I tighten this nut, it still gradually unwinds. It is probably necessary to provide an additional grover washer in the design to block the loosening of the tightening.I hope my message will help in improving the design of the coffee grinder.

Do not expect to brew very good coffee as soon as you receive it, seasoning is very important, you will be surprised at the change in taste after 1kg grinding. You will never regret buying a very high quality product

Here she is! It is a coffee grinder! 🤣
Jet shipping within a week from China... IT'S A THING!
Large, heavy (~750g), comfortable. The feeling of precision arises as soon as you take it in your hands, and when you start clicking the grinding adjustment system, it no longer leaves. And you begin to experience a technical and aesthetic orgasm! 🙈 🤟
A full turn is 60 clicks, a purover from 90-130. The millstones move freely without friction and micro-hooks with 5-6 clicks. Very quiet and smooth running!
Of course, the innovation and feature here is not even the 7th end rotor, although it is also, as it turned out. The feature is sorption nets to improve the quality of grinding, filter out dustiness and, as a result, show clarity in the taste of the drink. Naturally, the first test and comparison begins with this 😉

So, noname coffee grinder 5 star rotor / MHW Bomber R3 7 star rotor.
I ground 10 grams of grain each. The limit is a large indicator for the purover (20/130 clicks).Sifted through it. I evaluated the evenness of the total grinding without dust fraction.
Noname - less dust, but the grinding is clearly heterogeneous, there are more large fractions (probably it is noticeable in the pictures)
R3 - there is noticeably more dust, but the scales also did not react (0.0g). But the overall grinding is smooth, there are no large pieces, everything is noticeably smoother and clearer.
Later, I loaded the ground coffee from noname and ran it through the bomber. The coffee grinder, exactly, was grinding. Domol, and sifting revealed dust, equalizing the indicators in terms of quantity (by eye). Total loss: 20g/19.3g
It seems to me that the 7-end rotor, of course, gives a very even grinding in the general calibration range of the same purover, but, in turn, produces more small things, which can be eliminated by the features of this milk.
And, yes, coffee has become, in my opinion, clearer, sharper and clearer. Definitely, the taste has changed. Otherwise, of course, you will need to get used to it and select the desired values.
But, here, these nets... 😅

Its super good grinder.