Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Feel misled by a bottle containing a toxic liner

Bought this to have a water bottle without having to worry about BPA. After about a year of use it turns out the liners (which they still hide the composition of) actually contain BPA. I emailed them and received a very condescending letter. Some folks have sent their bottles in for replacements, but it looks like they're having trouble getting SIGG to honor their end of the deal (read on [...])I recommend glass Aquasana bottles. You can get six of them with a travel pouch to make them easier to carry/prevent breakage for not much more than this.