Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great Idea but Disappointed in Quality and Design

Work great for a while then the part that holds the bite value broke. Camelbac sent me a free lid but then a month later it broke again. It also doesn't fit in car holders. It is very difficult to keep clean and if you have a clear bite value others can see the build up of scum in the bottle, yuck! There is just too many pieces to have things go wrong with. The bite value if you are not very carefully when cleanly can tear. Also don't leave this water bottle in your car. If you do you will have water spilled in your car. As the water or liquid heats up in the straw it forces its way out through the bite valve and will leave you a mess. It is also is prone to leaking as we found out when we bought the smaller version for our 2 year old. Don't waste your money.