Title: Persistent Odor Ruins Otherwise Great Product
Review: Looks and feels great. The mechanism used to open and close the tumbler works well enough. However, the lid retains odors no matter how thoroughly you clean it. Possibly because the lid has parts that you just can't get to. Tried soaking in soap and water overnight and running through the dish washer (more time spent cleaning than a coffee mug deserves), but had no luck removing the odor.
Is this product review negative?