Bought several of the 40 oz. bottles and haven't bought commercial bottled water since. Simply fill it with ice and water in the morning and you're good all day. The only issues that I'd bring up are that the steel body of the bottle dents rather easily. Drop this bottle and it's going to have dents. I know that they now sell these with rubber bumpers on the bottom, but I purchased BEFORE those were added. I can't comment on the rubber bumpers and their effectiveness. Also, the plastic lid "sweats". Not a huge deal but it's the only place that the water can leak. It's not a deal breaker but it's worth noting.
I had found a Takeya 40 oz that my daughter apparently was not using. It became my constant companion. It made it easy to stay hydrated all day, it was nothing to do 2 fills a day (twice I have been hospitalized for dehydration leading to kidney failure before I got wise). When I moved, I lost my trusty black 40 oz'er. I tried other cups and bottles I had around but they were inconvenient. So I broke down and got me a brand new powder-blue one. I'm happy and hydrated again.
I just got my new Takeya water bottle about a week ago. I love the strong handle and how long it keeps my water cold! The one flaw is the bottom rubber fitting comes off way to easily (by itself).
got my Takeya the other day, filled it with water went to the beach 98 degrees, sat there for 3 hours in the sun water stayed nice and cold ,,, just what i wanted