This is an excellent design. I like the sleek black finish on the bottle. 24 ounce is a perfect size to fit in my hand. Not too bulky to carry around. Also fits well in my bag or big purse. I've been taking this everywhere with me. To work, shopping or anywhere in the car. Keeps ice for most of my 12 hour work shift. Keeps the water cold. Easy spout to drink from. Nothing hitting my nose when I open it to drink from it like others I have had. Doesn't leak or spill over. I would recommend this for any occasion. Working out, biking, hiking, camping, to use at the office, etc. Not sure how it works for heated drinks but I would suppose just the same.