Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Difficult to cut bag once the pail is full

When I twist the top to seal the bag after a diaper, the cutting blade snags on the bag, making sealing the diaper really difficult. Even worse, when I DO try to cut the bag, the blade does a half-hearted job, so I have to finish the job with scissors.This has been such a problem that now that we're out of refills, we're just going to get a different diaper pail.