Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Design Flaw

The top won't stay shut. I hoped we had a defective one, returned it and purchased another. After the first week, it would stay shut again. I found a solution for the wipes that dry out (the more wipes in there, the moister they are). I found that if you add more wipes to the bottom before it's empty, you don't have to throw away the last 5-10 wipes. So many flaws that I worked around, but I refuse to use a paper weight to keep the lid shut. Great concept, bad design. I wonder if the Prince Lionhart brand warmer is better.