I very much disagree with the opinion that the KafaTek grinders are beta test versions. The single complaint regarding the burrs on the MC6 made little sense. The significant differences difference between the MC5 and the MC6 involve a variable speed motor, and a flicker shute to better dislodge residual grind.
But the burrs are unchanged. Meaning that we are now in the 2nd model of grinders using the Shurikone burrs. Probably hundreds of MC5s and MC6s are with consumers. People are allowed to complain and I am not questioning the validity of that one users complaint.
I also disagree with the comment that Denis can be testy. He is far from that and is always helpful. Where he does take a strong stand is when people do not follow written instructions and disassemble the grinders for their own personal reasons. When they get into trouble afterwards, there is just so much assistance that can be provided. I’m sure he finds the situation exasperating.
The KafaTek grinder are precision instruments that are well built. For that single complainer, rather than stand in the way, he provided the old style burrs. What more could you ask for?