Product review (4 stars): It's a wick filter ...
My only qualm with wick filters--and this goes for all of them, not just this brand--is that they don't last long. It's partly due to the water content which causes calcium build-up within days, and the fact that wick filters don't have any anti-microbial properties. Again, that's not a critique of this particular filter; just filters in general.

As for this one, I was surprised to find the metal mesh on the outside rather than within the filter. It doesn't affect how they work, but some folks with sensitive fingers might not like having to directly grip the metal mesh.

4/5. They do exactly what they are supposed to do. But, like all their peers, they do nothing outstanding to make them worth that 5-star rating.