For product:
The cups are screwed tightly, keep everything easily, and I'm sure to find use for them after their mother's milk. So in well so far
What I do not like - the inlet size. One needs to attach Avent accessories such as pump or Natural sucker for feeding an adapter. That is indeed included, but increases the Saugzwang considerably - Say, want to drink the child directly from the container, it must, the adapter due suck significantly stronger than directly from an Avent bottle.
It ends in the fact that we decant the storage container in Avent bottles for feeding. Actually useless, but the standard opening would be perfectly adequate.
Buy recommendation for storage: Stackable, absolutely tight, sufficient number.
For feeding rather unsuitable, here the Avent bottles are significantly better
