Title: Lid the problem
Review: I purchased a double pack at Costco and in the beginning loved them. However, after about 6 months of constant use, the lid started to not seal correctly and the smell ..... I tried everything to clean the lid - even soaking it in baking soda to no avail. I finally threw them out and am now - once again - on the hunt for a good coffee mug. Today I took my coffee to work in a glass jar - OK that didn't work very well, either.
Is this product review negative?