Not a fan. It's not easy to put the cap together, it doesn't fit into any cup holder, and the ice melts quicker than any other insulated bottle/mug I've owned.
This cup is great with one exception. I wish the bottom was tapered a bit. As it is now, it does not fit into my car's cup holder. Carrying hot coffee, even with the side top closure, I hesitate to carry it between my legs and there is nowhere else to put it. That makes driving with it extremely difficult. Other than that design flaw I love it. Love the 24 oz capability too.