I can see how some might think that I over stated how I felt about this, but when the poster's only post, ever, is to state that there are problems with the product and to call for instructions as to it's operation (no mention of replacement). I don't think that qualified as a fix. Yes, later, due to the many customer complaints, MSR did institute the replacement policy and I think that says a lot for them in backing their product. MSR puts out some good products, and my post was not aimed at them. Skewing the overall rating in a weak defense was. I, and others, actually use the overall rating when quickly checking out a product.
Perhaps had I not been put in the position of having to carry a 9oz brick for another month while doing that particular hike I would have held onto it and tried to get a replacement. As it turned out I dumped it two days later in the first trash bin I found while doing a road crossing. When my back-up tablets ran out, I didn't use filtration.
You'll note that I didn't rate the filter since the problems that would have caused me to rate it as a 1 had been fixed. Based upon that, I wouldn't drag the rating down and maybe I expect the same rating policy from others.