UPDATE JUNE 2022:Unit continues to perform very well, but I noticed the motor housing was getting hotter and hotter with each use (even though these were generally <90 seconds). Another reviewer mentioned their unit was overheating due to having internal wiring designed to operate at 220 Volts, rather than 110V. When I opened my unit up, I noticed I was well on the way towards burning off the insulation on the wires supplying the electric motor. I replaced these wires with 12 Gauge, stranded copper wire. This completely solved the problem; now my unit hardly heats up at all.This seems like a potential SAFETY HAZZARD, particularly for units run for lengthy periods in dusty conditions (like grinding flour). If your unit seems to be getting hot, I suggest you check your motor wiring for deterioration.```````````````Original review: April 2021```````````````````````````````````````I needed a better method to grind the grains and spices I use for bread baking. I bought a "used-like new" unit, which saved me about $40 off a brand new one. Aside from a small remnant of what looked like almonds in the chamber, the unit did appear brand new. It is a heavy, sturdy, not-messing-around machine. The only controls are on/off and a timer, so it takes a little practice to learn how long to process each food to your desired finenss.A couple of examples: my unit ground sage (leaves, stems and small branches) to a flour-like consistency in about 90 seconds. Brown rice only took 60 seconds to reach flour-like fineness. Coffee beans got to a coarse grind in about 10 seconds, and to espresso fineness in 20.The unit is somewhat noisy, but certainly less so than doing these same jobs with a blender or food processor. I should also note that the unit works by beating rather than cutting. The blade assembly is quite heavy, and just pounds things into a powder. On the subject of blades: my unit shipped with two spare blades, as well as 2 sets of replacement brushes for the electric motor. There are clear instructions on how to replace both. This, along with the weight and studriness of the unit, indicates to me it will last a long time even under heavy use.Also included was a small brush for cleaning, and a fine-mesh sieve that fits over the top of the unit. I can recommend this unit to anyone who grinds dry items into flour. After years of grinding dry ingredients (not very well) with a food processor or blender, I'm ecstatic with this unit's performance.