We bought this item first because Sophie was too expensive and we weren't sure we were going to love it. First off, our daughter LOVED Chan. He's easy for young babies to grip and has that ever-so-familiar head for all the nursing babies. Our daughter used it all the time while teething; it was so effective that we didn't know she was teething until her teeth popped out! Well, needless to say, we loved it so much that we splurged on Sophie too! Sophie was welcomed, but not as much as Chan. Sophie doesn't squeak as easily and has more nooks and crannies that aren't so familiar. Although Sophie is good, Chan is GREAT!
She started using it at 4 months and is now 9 months and chomps on it just like she did 5 months ago! We can't say that for many of her other toys!