I have the hang of the bottle no problem. In fact, I love it. I can even manage a sippy cup although I don’t like it as much to be sure. Dad drinks a TON of water and always out of this huge cup that has fascinated me since day one. So, I thought I would take control and see what goes on with this. As it turns out, almost my entire head can fit into this sucker. Made drinking a bit of a challenge but making noises in there makes some very sool echos. I tried for like 10 minutes before finally giving up and letting dad go wash the cup as I had drooled all over it.