This is so cool! I just had to buy it when I first saw it. It actually works really well, but you have to get used to it. The directions say to cover the top air hole with your finger to control the flow of milk and that's essential. I used up all the milk in the first few bites because I didn't do this. Also, it works better with smaller cereals as the bigger ones need a little jostling to come out of the cup.
I'm still finding different ways to use it, but I'm immensely impressed.