Bests & Worsts Reviews from Amazon

I decided to buy this Lifefactory glass bottle after swearing off re-usable plastic and stainless steel bottles, which would leave a weird aftertaste in my water. With this bottle, all I get is the refreshing, clean taste of my water, untainted by any plasticky or metallic aftertaste. What's more, unlike some cheaper silicone-encased glass bottles, the silicone components of the Lifefactory bottle are completely odor-free, probably because the silicone is pure. (Several manufacturers of so-called "silicone" products put additives in their silicone in order to make their products more cheaply and up their profit margins). In addition, the carry-handle on the bottle makes it very easy to carry around, adding to the convenience factor. I don't use this bottle for vigorous exercise, so the silicone drinking spout cover is more than sufficient for my needs. However, the spout-cover does not "snap" on securely, so this might not be the bottle for you if you tend to put your water bottles through the ringer. I could see the cover easily coming loose and popping off the spout if the bottle is forcefully knocked over or tossed. (Very likely scenarios for a sport-style bottle). And definitely don't plan on throwing it in your backpack unless you want to risk getting the other contents wet! There's another reason I deducted a star from my rating of this product: When you remove the screw-on cap to fill the bottle with your beverage and are putting the cap back on the mouth of the bottle, you have to get the alignment exactly right, otherwise water will leak out from under the cap and your drink will end up on your chest or in your lap! (Thank goodness I only use this bottle for water!) This is an easy mistake to make with this bottle because the screw-on mechanism is stiff and gets stuck easily. So when you're screwing on the cap and you feel resistance, you assume it's because the cap is on tight, when in fact, it's misaligned. Plus, it's pretty difficult to tell that the cap hasn't been screwed on straight just by looking at it unless you pay extremely close attention, which most people don't do when they're refilling their water bottles. A smoother screw-on mechanism would go a long way toward preventing this type of spilling accident from happening. Other than those 2 minor issues, this is a wonderful water bottle. I've already bought a second one (without a flip-top spout) to use at home. Grade: B+