Fortunately, I can only say. With us, the part really works well. We use the provided trays to feed the Wenko with a new "charge" of frozen water and in parallel, we have also always very normal ice packs in the freezer, we use alternately. It actually works always impeccable.
My wife is of the opinion that the people who have given negative reviews for this product given possibly the laundry too wet in the dryer because the washing u. U. was not thrown enough. Our washing machine can spin up to 1,400 rpm, the laundry is no longer "soaking wet" and everything works as desired.
We can recommend this product anyway.