Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not worth it

I had high hopes for this product but was very disappointed. I was able to get the ice packs to fill up with no problem, but noticed that little pin-sized holes were allowing liquid to seep out. I thought that maybe this problem would go away, but it did not. After freezing the ice packs and putting them in the cooler, they lasted only a few hours and as they thawed a slimy residue was left on everything it came into contact with in the cooler. I was concerned about ingesting the slimy substance because it was all over beer and water bottles. Made sure to wipe everything off. Tried rinsing them, but they still leak. Don't want to use them again, sadly.