I tried an 8 inch grinder I bought on ebay for less than $100. because it had good reviews on youtube and only cost a little over $100 and it turned out to be BIG. The mill motor is powerful and won't stall when pressed hard and it just vibrates a little instead of shaking the walls. my house as it was in the cheaper one. A small note is that they combine the light at the flexible neck with the power of the meat grinder. To turn on the light, you must turn on the grinder. WHY? The light has its own switch, so why bind to another switch? A small sensible change on my part and the light now comes on independently of the coffee grinder. Also, the spark arrestors are a little less convenient because they don't pivot on top of the Plexiglas. They definitely need to change that. Overall though, it's BIG and POWERFUL with little vibration and I'll give it a 5 out of 5 rating.