Negative Positive
Title: Great value, must be assembled correctly for no leaks!
Review: I started using the Nuby products as soon as my son started drinking from cups. We started with the Gripper Cup. Then when he got a little older we decided to move up to a straw sippy cup. The Mega Sipper works wonderfully and is such a great value. My son can easily grip it and we have had no leaks when assembled correctly.I will warn you that you must pay close attention to how it is assembled before you take it apart to clean it. I put it together wrong the first time and my son spilled milk all over himself. After closer inspection, I realized I hadn't pushed the valve all the way in which can take some work to do. Once I fixed that, no more leaks. I assume this is the problem all the other reviewers are having when they say it leaks.And as long as your little one doesn't use it as a teething toy, it will last a long time. Our Gripper Cups lasted nearly a year before the spouts began to degrade and leak a little.
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