Title: Not Too Bad
Review: Not a Bad Mug. I love that it is 100% Spill proof. It also keeps your drink cold for a very long time. My only complaint is that It doesn't keep my drink hot for 4 hours like it claims to. I even tried pouring boiling hot water into the cup for about 20 to 30 minutes to get it conditioned to retain the heat and then dumping the hot water and pouring the hot coffee in right away. Even then, I still only get about 1 to 1 and a half hours before it gets warm. In fact it doesn't do much better than my cheap stainless mug from Walmart, although that one is not spill proof. But other than, I do like the mug. And my wife absolutely loves hers for keeping her drinks cold all day long, often while still having some ice left in it.
Is this product review negative?