If you don't know what a single dosing, low retention grinder is, then this product is not for you. If you have been looking for an inexpensive, compact espresso grinder that exudes quality, then this is what you have been looking for! This is not a general-purpose coffee grinder, though it can grind multiple grind sizes. It is designed for small quantities of coffee (single dose) and high grind adjustability. Pro's:1.beautiful fit and finish, better that the usual for this type of product. Quite attractive.2. Very compact form factor. Fits perfectly on my countertop. Power brick is very compact compared to others using this design.3. Quiet. Low RPM motor is quiet and low heat but does take slightly longer to grind.4. Very low grind retention. Bellows works great.5. Solid. All metal construction. Heavy enough to stay put on countertop.6. Not overpowered but has never stalled on me with medium roast beans.Cons:Can't really think of any, some may not like the separate power brick, but I prefer it to a heavy, bulky AC cord. Has been working fine for me for two months now without any problemsSummary: A beautiful to look at, functional, compact grinder that does both espresso and AeroPress. I am very happy with this grinder!