As you would expect from WMF this is a high quality product, a novel and innovative design, that is mainly successful. For my intended use as an overnight water carafe on a bedside table it has one flaw that I had not anticipated:because the stainless steel lid needsspace to pivot there is a 3mm gap around its circumference, it does not fully seal, and dust or very small insects can gather on the inner silicone rubber seal. It therefore needs to be dismantled for cleaning daily.