Almost perfect
First it's important to understand, this grinder has 2 different grind settings, if you turn it clockwise you get a medium coarse grind, suitable for most DHV, anticlockwise gives finer, more combustion friendly herb.
The shape is very ergonomic, the bowl on the underside, is convenient too, if not a little messy to fill at times.
All in all it's the best grinder I own
That said, there's a couple of personal gripes
You have to watch the pack, too much herb will have you straining to grind, despite the easy to grip shape
Too little and you'll get a lumpy grind
It absolutely may be me, but sometimes I only need 0.3 or so, and its not the best for that
Instead I fill pucks, with a few days worth, so I can hit the sweet spot with the pack