I have only used this for aromatic spices so far. It works very well and allows for various types of grinds - from a coarse to fine grind.

I do notice that having ground cumin seeds, clove, and black pepper that the smell of these aromatics lingers. I'm not sure, then, how this will work if I want to grind nuts for cookies. It seems that the scent may linger and has the potential to impact other recipes. I'll likely stick with my manual nut chopper and use this grinder for spices.