Have the cup for several months now several times a week in service and was so far very impressed. Functional cap, robust materials, beautiful design, good insulation properties. But recently I have a "tasteful" problem: Namely stink the seals in the lid. Despite embarrassing cleaning after each use got a smell of my cup seals. And although heavy. The smells so strong and unpleasant that I only thought I had forgotten to wash the cup. But was reingeschaut all Tip Top. Then I have all repeatedly rinsed, washed, soaked. Nothing helped. Because before anything can be saved to the seals I've even with pure steam (I have in the job) and tried the cup steamed. But even this did not help. I get the nice thing exchanged, and will bring him back to me. Possibly was only a material error, the cause because I have never read of the problem. Replacement seals directly from the supplier I wanted I did not get up now, or to my email be no answer. That is why I am afraid to make a detour via a return on Amazon, but as usual is not an issue. Well done to this point to Amazon for more uncomplicated handling of problems and above all very fast response times. That reminds me of the cup in spite of everything very well like I give 4 stars, a deduction for not answering my request offered.
Edit: Today a friendly email with apologies for the late reply to the message received, the I get a replacement lid. Customer friendliness is thus also taken seriously. Thus, there is of me 5 stars
