This is my first Klean Kanteen purchase. I've been getting a lot of use out of this bottle and it's very durable, functional, and easy to clean. Not sure if I prefer this to HydroFlask but it's definitely a worthy replacement. It keeps colds cold and hots hot just as adequately, and I think I like the Kanteen lid a little better (the stainless interior is a plus). Also, I dig the sleek finish. This is a quality product.