To allow for context let me explain the role of the Manual Coffee Grinder in my life. I use this grinder predominantly for travel and work related coffee brewing and not so much for home use. I grind the beans specifically for French press style so I can't really comment too much on the finer grinds. I've been using this grinder most days for roughly two months and prior to this purchase I either purchased ground coffee or used an electric grinder (Cuisinart Grind Central). I personally give the product an overall 5 stars for my use of it but it overall gets a 4 star for quality. I will still breakdown some of the various characteristics because it is by no means a perfect product and some of the flaws may lean other users more towards a 3 or 5 star rating.
Pros: Compact with removable lever arm. Fits well in users stabilizing hand.
Cons: Chamber is only large enough for roughly 6-8 cups of brewed coffee (more or less depending on desired strength). Larger volumes will require multiple grinds.
Take home: Ideal for grinding coffee for 1-2 people. Ideal for travel (camping, work, etc.).
Pros: Easily adjust grind to desired coarseness. Grind remains consistent throughout each individual use (see below). Really satisfying "crunch" as the coffee beens are mechanically ground. Relatively quick grind for rough coarseness (about 2-3 minutes).
Cons: Time. I've only done fine coarseness twice and both times took upwards of 5-10 minutes. Occasionally at the end of grind the last coffee bean fragments will lodge in the grinder. When this happens continued turning of the lever arm will actually tighten grinding mechanism resulting in a finer grind. If product not cleaned or adjusted in-between uses you may result in finer than anticipated grind with next use. Product advertised as having an 18 click grind selection. Though this isn't totally inaccurate it is a bit misleading as the coarseness is based off how tight or loose the plastic nut is screwed on the base of the grinding mechanism. There is no "clicking" or visible marker for which setting you are at (1 through 18 I'd presume as advertised). Grind coarseness is very much a grind a little bit then check if the coarseness is right. Adjust and repeat until satisfied.
Take home: Be ready for arm day if you are grinding for multiple people, making multiple brews, or enjoying a finer coarseness (Expresso drinkers). If you fall into this category you may want to consider an electric grinder. Ideal for French press. Should be cleaned and checked every few uses.
Pros: Can obtain a consistent coarseness that may be difficult to obtain with low and middle tier electric grinders that are of equal or greater price. Product seems structurally sound with no evidence of wear and tear as of yet.
Cons: None that I foresee at the time this was written.
Take home: I would recommend this product for anyone pursuing rough coarseness consistency. Great value when compared to entry level electric grinders.