Bests & Worsts Reviews from Amazon

I bought this bottle based on the rave reviews and once I got it, I immediately went through the return process. Horrible design of the top, there's no way to keep it clean and I guarantee it will breed all kinds of crud. Couldn't even get a toothbrush in there to scrub it. All this intricate spring top opening....who needs that, keep it simple to keep it clean and sanitary!!