This was my first step up from a blade grinder. Daily needs are for six to ten (6-10) cups of coffee. Havenít moved up to espresso yet, so can offer no comments in that regard.
First thing I learned when using this grinder was to keep a firm hand atop the recepticle during grinding, otherwise the force of output could pop off the lid and scatter grounds everywhere. Second was that the grounds adhered to the inside of the output container and needed a firm rap on the lid to dislodge them before opening. Care was also needed getting grounds from the container due to the large opening at its back. Third, that the only facility for cleaning the burr was the scraper provided to clear any clogs.
Grinder isnít quiet but that wasnít an issue for me. The variety of grind settings was and I have yet to find the level that doesnít produce sediment with a gold filter (currently up to 10; even the finest espresso setting was okay with paper filters).
With these quirks learned, Iíve been happy enough with the Braun KMM 30 grinder. I prefer very strong coffee, so the scoopís one-level-measure-per-cup worked well.
The biggest problem Iíve had with this grinder is its knob. Whether from poor-quality materials or an ill fit, the knob fell off regularly and slivers shaved off its plastic, the knob eventually cracking and today finally breaking completely. Braun doesnít list a replacement part on its website and the only local service center isnít open Sundays, so Iím reduced to using pliers until I can find a part or replace the grinder. Buying a backup knob is recommended if youíre considering this grinder.