We got these mugs a year ago. We first got one for my husband. He wanted a non-plastic mug for his hot and cold beverages at work. This fit the bill and then some. He can not say enough good things about this cup. It has had a few accidents but nothing has broken or spilled. One thing if you have a hot beverage, push the button a few times to de-pressure the cup and give the cup a chance to cool down a bit. It might not look like it but it sure can keep the heat in. We drove 4 hours on a family trip. Started with a full cup of coffee, on hour three the coffee was still hot. Its a bummer you can put it in the dish washer but a few mins hand washing is not that big of deal. We have given these as presents and they are so greatful we did.