Philips AventBaby Bottle to first trainer cup

So, at first, I couldn't figure out how this sippy cup worked because there didn't seem to be a hole and my LO couldn't get any of the juice out. Finally, after a bit of googling, I discovered that there is meant to be a slit in the top and it's possible to open it by squeezing the top a couple of times in a couple of different directions. Others on this thread have also commented on this design flaw and with the lack of instructions that come with this bottle it can be frustrating and perplexing. Now that I have it figured out it works well and my Lo likes it.

My son is 8 months old and this was the first sippy cup we used. I appreciated its size and the handles were easy for my LO to hold on to while using the cup. He seemed confused by the nipple even after two weeks of trying it but he is an EBF child who does not care for bottles. Once we transitioned to the spout he was able to understand the concept of "the cup" and drink from it with ease and less difficulty, even though more ended up on him than in him due to there being no leak proof valve.

My daughter is 4 months old and shows a lot of interest in holding her bottle on her own but doesn't quite have the coordination yet to hold the whole bottle without a handle. The package says "mix and match our cup and bottle parts." She's only still drinking formula and she is drinking more than the 4 ounce bottle holds. We use the 9 ounce bottles. I went to take the handle off of this bottle to put on hers, like the package says I can, and it doesn't fit. So disappointing.

My daughter was very upset...Then we seen there was no way for the water to get out!!! Horrible product and a waste of money.

I bought the product but it's impossible to use it because there is no valve hole. I bring it to Brazil because we don't have this product here but it was a waste of money.

This product was horrible. It leaked at the screw on area and no matter what I did it still leaked. Waste of my money.

I bought the sippy cup but it doesn't have a valve hole so nothing came out

It leeks from the cap where it screws on. It always makes a big mess. When I take the lid off I have to have something under it to catch the liquids.