Great coffee grinder for the money, even if you pay retail.
Negative Product Points
It does produce some dust, but nowhere near the amount of a whirly chopper.
I purchased mine slightly used (older model KMM-20) in a thrift store. Most of the reviews here have been for the newer model KMM-30 which doesn't seem to be made as well as the the older KMM-20's are. I use it for my drip machines and have NO complaints with it's grind except for a small amount of dust in the grind. Not a good grinder for expresso has been said by many reviewers. I am sure I could get a finer grind from it if I broke off the stops and allowed it to grind finer for expresso but I have a better grinder that I use for that. I read all the other reviews on this product and have to disagree with the ones that knock this grinder. It isn't a top of the line grinder, but for the money it is a good grinder for the average user.
Buying experience was great...for $2.99 it was a treat to pay for it!