The product itself is great. The labeling sucks.
Product description says it can be microwaved. The box the product comes in says do not microwave. wrote to the vendor and they said yes it is microwaveable and sent instructions. DO NOT FOLLOW THEIR INSTRUCTIONS. I microwaved it for about 00:50, less than half the time they said to start off with, and it was unbearably hot. had i done the one minute on each side like the directions said, I think it would have burst.
So, once I figured out the labeling and directions were junk, I have had good experience with the actual product.
oh, also the initially sent me only one rather than a two pack, but they fixed that error promptly.