Instruct: Classify Amazon reviews into positive or negative sentiment
Query: plastic degrades in 6mo

This plane is rather expensive for handheld but the blade seemed really nice so I bought one. It also said "Made in USA" so I figured the quality was superior. I was wrong. Although the plane shreds cheese, chocolate, veg, etc very well, there is a huge flaw in this unit. The blade is held in by clear plastic that degrades over a short period of time (6-months). On my unit all the clear plastic has cracked and the unit is falling apart. The plane is supposed be "dishwasher safe" but it is not. The heat from the dishwasher is what caused the plastic to crack allover. I always washed it on the top shelf, farthest away from the dryer heating element. But still the unit got ruined. If you get this shredder/plane I suggest washing it by hand only.