Honestly I got this because was getting tired of the mess and imprecision of conventional blade grinders. That being said, I'm pleasantly surprised by now quiet and fast it is. Also, the taste of both my cold brew and drip machine coffee significantly improved. 
With the programmable grinder it's easy to figure out the precise amounts and coarseness you need for particular container or coffee type. KitchenAid didn't provide details on the burr material but it seems high quality and the top part is partially removable for cleaning. 
The only thing I didn't like was the plastic grind catcher. I'm afraid it will eventually break or crack with me constantly removing/replacing the grinds container.