Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: beware of plastic gearing in the motor

The exterior is all shiny and stainless steel, but the motor in this thing has plastic gearing, and those plastic gears wear out and don't last. I have read here reviews from lots of people happy that they get ~2 years of use out of this unit before it breaks and happily go on and buy another, but I am not part of that fan club. One can't be faulted for thinking that Breville could use something better than $0.10 plastic gears to power this thing.