Bests & Worsts Reviews from Amazon

I have ordered three of these bottles. Two of them both had warped steel around the lip of the bottle which means the rubber seal does not fit flush with the rim resulting in bad leaks and big messes. That having been said, the third bottle insulates surprisingly well and 40oz is the perfect size for me. In theory it is exactly the type of water bottle I was looking for. But even on the third non-leaking bottle, the rubber piece that fits around the lid has already come loose and makes opening and closing the bottle difficult. In sum - the idea behind this bottle is great, the insulation works extremely well, but the fact that two in a row for me leaked and the third has a defective design in the lid has reduced my rating to two stars. Considering the price, and for an otherwise sturdy feeling product, I would think these issues would not be present.