I really like these bottles. I love that they are Glass. I love the handles. and the nipples are great and the sippy cup nipples really are spill proof.
My daughter (10months) has struggled with feeding herself as we've had only glass bottles and they are too heavy for her. Once we got these she had no problem learning because of the handles. We've just ordered 4 of the 4 oz bottles to use just as sippy cups.