I have tried fisherprice , tommeetippee, Annabel Karmel by lindam sippy cups but nothing can stand up to this sippy cup. May be it's the soft spout or it's angle or it's handle I don't know what that makes it so unique and so much loved by my toddler ever since I have bought it six months ago it's been his favorite in drinking both water and milk. Moreover it looks so trendy and cool to carry around. The only problem that I had faced initially was that the spout had tight holes as it was more of a slit I managed to open it up by just passing the sharp end of kitchen knife through it. I feared that it would have made it leak but it remained spill proof. Since then I have purchased extra nipples and done the same. I am real happy with this lovely product. Infact this was the first sippy cup my baby had accepted to drink milk when he was weaned from breast milk.