Review on Tommee Tippee Infant Trainer Sippee Cup with Removable Handles, Boy - 7+ months, 3pk: Superior Training Sippy Cup for Toddlers by Diana Comeford

I love the size and cute design of this product but this is the second zip cup I've gotten from this company (different versions) and both were difficult for my little ones to use so they just don't use them. I've tried sucking them myself and I have to admit that it takes a decent amount of energy to actually draw liquid through them. Also, it's really difficult to clean all the parts that make it "leakproof," which makes me worry it might eventually get mold or fungus. This may work for some, but unfortunately not for me :(