If a grind that is coarser or finer than what the adjustment dial covers is needed, the instructions tell how to move an internal gear (under the knob) a couple of notches to extend the range one way or the other.
I find it really good. Easy to clean.
There are hand made ones that are fun to use but cost almost the same.
The bowl of the KA is heavy glass. I recall paying around $160 new for mind about 8 to 10 years ago.