Instruct: Classify the given Amazon review as either positive or negative.
Query: Worked really well... while it worked...

I really enjoyed using this Waterpik, especially with the toothbrush attachment. Unfortunately, after about 6 months of use, it appeared that the plastic tubing was getting kinked (where it met the handle). Unkinking it seemed to work until this last week - now it no longer pumps water at all. It's 1 year and 2 weeks old. To say I am disappointed that such a well respected company such as Waterpik would put out such a flimsy product is an understatement.