Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Excellent product!

This is a fabulous water bottle. It's simple, easy to clean, and convenient. The bottle can be easily and safely clipped to a carabiner, for those on the go. The product is BPA-free, so it's friendly for you and the environment.It comes with easily replaceable parts, such as the straw and bite valve (which can also be customized by ordering your favorite color). Camelbak's patented bite valve really does make you drink more water! So, for those who don't exactly love water, but want to fulfill their daily intake need, this is absolutely perfect. Practical, simple, genius. 5 stars, hands down.