Title: Contino Autoseal Tumbler
Review: I'm sorry to say that I'm disappointed in this product. It doesn't hold hot coffee hot enough, long enough, which was my whole point in buying it. If you're filling it and planning to drink it within an hour, its fine. I wanted it to retain heat for 3-5 hours. Perhaps my expectations were too high. I was thinking I was buying a portable coffee "mini-thermos" that I could take to the office and have hot coffee for half a day. Didn't quite work out that way. And to make matters worse, I bought two of them with my initial order. So, now I find I have to go back to using my old "thermos" which is what I was attempting to avoid.
Is this product review negative?