cup but not easy mounting

I know the products "Advent bottles" for the entire collection for my daughter
this mug is well made, the handles are non-slip and adapt well to small hands by helping them not to slip, they are positioned on the body of the bottle or on the handles
the handles are removable

my criticism rests on the nipple:
the advent nipples are hard, there it is a 3 speed (so you can not use the cup as a bottle age but first 6 months +)
However, the big snag comes when you have to put the pacifier in place: the nipple is not well positioned on the ring, too pulling on it and it comes out the other side, is not shooting enough and it s 'Inrush not well in the clamping ring
a mounting assay which is not easy when the product is solid, it is a pity