I tried S'well because I liked their range and the fact that they were light weight and looked REALLY nice and fairly big options for designs and patterns. I really liked it for myself. The smaller bottles are great because they are sturdy and easy to clean. The larger ones, once filled got pretty heavy and if you drop them, they WILL dent. They also get stollen a lot unfortunately. For an expensive product, I would just use it at home or somewhere I could easily keep an eye on it.
Is it worth the money? With so many options, its a well-made bottle, but it doesn't really have any special features that make it note worthy for that price tag.