That is the problem with these reviews on water and many other reports on health related subjects, there are a lot of opinions. There is apparently no way of observing water molecules. However, if you have conversations with experts on water, they will tell you some interesting things and many of them will bombard you with more things than you can remember. I remember one of them telling me that just because your fish tank has a constant stream of bubbles doesn't mean that the water will receive more oxygen.