Instruct: Classify the given Amazon review as either positive or negative.
Query: Great at grating but...

I have been using this for two years, and the grater is wonderful.But the first trip the the dishwasher (top rack) it was nearly impossible to get the box to fit on the bottom. The bottom part warped, making the box useless.I still love it, using it over a plate/cutting board. But the box was junk.