Thermomix will amaze you with its ability to chop, beat, mix, whip, grind, knead, mince, grate, juice, blend, heat, stir, steam and weigh food.
Mills, Grinds, Pulverises & Grates.
A coffee grinder is a specialised tool.
I dont mince meat in my grinder and I wouldnt be trying to grind coffee in my mincer.
The word "Pulverises" stands out to me.
Despite the marketing listing coffee beans in the range of items the Thermomix will devour, I wouldnt rate it any better than a $10 spice grinder for performance on coffee beans.