These sippy cups are leakproof and easy to clean. Our 15 month old grandson uses these everyday and has no trouble holding or drinking from them. Not exactly leak proof but close.

My toddler likes to steal my starbucks cupsoften. Replacement straws can be bought at chicco usa website for $1 a piece.

It’s sooo easy to clean and take apart. Cleaning the parts is annoying by hand but easy in the dishwasher.

Doesn't require much suction to get water out of the bottle. He has a habit of turning his bottles over and squeezing the straw area to get the water out. He uses one at his daycare center and they seem ok with it.

Under the lid is very difficult to clean beacuse the injection mold veins. Its like cleaning a bunch of nooks out of it. The underside of the lid makes it very very difficult.

The cup pulls milk out slowly until it's sitting in a puddle of milk. Worst part is the cups leak nonstop. The cost to replace the straws is as much as new cups.

Everything spills out of them if they’re tipped upside down. I believe a product like this should be allowed to lay horizontally without leaking.