Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Britta should replace these pitchers or refund people's money

I know this is redundant but boy do I wish I had looked at these reviews before buying this pitcher. The lid design defies good sense. There is nothing to hold the lid on. You MUST hold the lid on with your free hand as you pour with the other. In my case.....not sometimes. All the time. Don't buy it. Period.