Bests & Worsts Reviews from Amazon

I bought this because of the stainless design, my child prefers using a straw, and the 12 oz. capacity versus other toddler cups that hold less and you constantly have to refill. It was a great cup when we first used it. It keeps the liquids cold longer than others we've tried, and has little to no leakage. It is somewhat difficult to get the drink "started" each time you refill and replace the lid, but that is easily dealt with by giving it a quick sip before giving it to your child. You can easily keep the straw pieces clean with the two-parts to the straw and regular use of a pipe/straw cleaner. I was excited that this cup seemed to be the answer to the many attempts at finding something that doesn't leak, is easy for a toddler (20 month old) to use, holds more than a couple ounces, and is something that can be kept clean and free of mold in all it's parts. After only a few weeks of use, the lid's vent section had mold on it, and it is impossible to get anything into that area to clean it. Because of the difficulty in finding and keeping a cup that won't mold, I've been meticulous about cleaning and allowing the parts to dry to hopefully avoid mold growth. However, the vent is ruined, the lid unusable, and we have yet another cup that either takes up space or gets thrown in the trash.