This grinder replaced a 4 yr old $50 mill grinder. The difference in quality is surprising. I've always heard the grinder is most of your coffee quality. while I believed this, to see it firsthand is an eye-opener. The same beans I've used for 25 years suddenly have a much better flavor. And I'm using the same espresso machine.
The physical instructions were laid out in Klingon, and led me to feel they were translated from another language. It seemed so complicated. Thankfully a YouTube video showed me it was the simplest thing in the world. I can't believe how quiet it is, and it's about five times faster than my other grinder. it was finished grinding before I knew it. alAs far as grind consistency, it must be awfully good because the coffee came out much better flavored. My espresso machine didn't have to work as hard to get the water through. I think this would satisfy anybody except the coffee connoisseur, and these guys are picky fanatics. I'm just a latte lover, and this grinder has made my lattes better than they've ever been. If this helps... I use a $400 DeLonghi machine. Nothing fancy