Anyone tried pur storage bottles? I hear it's really good for breastfeeding mums

I purchased these bottles. There are reviews from moms who say that the milk smells and tastes fresher because you need to use it together with the vacuum pump. It's just another method of storing the milk. The freshest is still direct latching. I don't use these frequently, because I store mine in Evenflo glass bottles. I'm trying to cut down on using disposable milk bags because I find it extremely environmentally unfriendly as these can only been used once.