I just recently discovered the Bodum products and have been exceedly pleased with them. I was given a set of 2 as a gift (they come in sets of 2)and have since acquired the mugs and the iced teas. I LOVE THEM. The hot drinks stay hot longer, and the cold drinks stay cold longer. The only problem that I have found is that the iced teas are a bit difficult to hold because of the girth and I would not recommend them for anyone with small hands or short fingers. Otherwise, I give the entire line 5 stars!