This grinder was part of the Titan Project and received great reviews. It even beat the Robur in one ocassion in the Can It Beat The Robur H.B. thread. You can not find a better deal for a conical grinder in this class.
Positive Product Points
Great grind consistency. Not noisy I have the chrome version of this built as a tank grinder and it is just beautiful to look at. Very low RPM conical grinder = less heat applied to the coffee. Price compared to similar grinders like the Mazzer Kony and good customer service from 1stline.
Negative Product Points
Not that I know of.
The MXK ( manual)Conical Grinder beats the M4 and Rocky consistency wise.
I barely have to fiddle with its stepless grind settings compared to the others.
Shots take way longer to blonde compared to the Macap M4 and grind consistency is top notch. In addition to that, no clumpling has been observed.
The chute is huge, therefore, it is very easy to clear up since I single dose with it.
I do not use the hopper which is enormous. I purchased a rubber gasket at Ace thart fits my Alex Duetto's single basket. This way I cover the neck of the grinder putting the tamper on top of the basket + rubber gasket avoiding beans popcorning.
Many stainless steel funnels sold on Ebay and Amazon fit the grinder's neck as well. They are way smaller and match the grinder even better than the colossal original hopper.
In addition to that, top burr removal is very easy.