I have one and I love it. Just bought it in December for $59.95. My gears are nylon not plastic. Unless you crush sticks or rocks in there I can't imagine it being a problem. This is just ground meat we're using.
Easy to clean and works good as a hard cheese press
too if you put a rubber bung or cork in the base meat hole with a small slit it it to drain the whey. Note: Cheedar takes 50 lbs, Romano takes 40 lbs Parmesan takes 40 lbs of pressure - so far no problems.
Mine has been working pretty much full time for cheese or sausage since I got it!