it's a heavy and solid piece of equipment (as far as the grinding mechanism and motor). The case and basket are plastic.
I read reviews where folks complained about the basket having a static clingy thing with the grinds when you pull it out to dump into your brewer and some grinds end up on your counter---and that is a real thing, but not a hassle to wipe up.
Because this is an entry level grinder, you don't have the option of grinding into the plastic basket or grinding directly into your espresso machine basket but since your using a chemex---not an issue. it'll probably take a couple pots of coffee for you to dial it in, but I think you'll be happy with the results.