I have been using plastic grinders form back in the 70's. This is really a nice upgrade. First the weight alone makes it easy to use. very little effort needed. second, although the teeth look similar to the plastic ones, this does a far superior job of grinding. 3rd, what I really like is that once grinded the weed drops into its own storage container. It's neat, clean no waste. Lastly, its a well made solid product. Not going to break or need replacement anytime soon.