The tumblers are great. In the hot Texas heat, they keep cold drinks very cold. I really like the fact that there are so many different designs. I will look for more new designs in the future. I purchased the chocolate lab insignia on mine and it is very cute. The tumblers are the right size, comfortable to hold (I have carpal tunnel in one of my wrists) and not too heavy. I am sure I will be using them for a long time to come, particulary this summer. It is nice to see a beverage holder that is stylish and also nonbreakable.
These glasses are great. They do indeed keep drinks colder and they do not sweat. The lighthouse pattern is lovely. I'm considering buying a second set. They're a bit expensive, but they seem sturdy enough to last.