Product review (4 stars): They work as well as much more expensive filters, but are not the only functional and inexpensive option.
I live in Loveland Colorado where our water tastes remarkably good most of the time. On those rare occasions when the water coming out of the tap has some slight taste these filters completely remove that taste. I replace the filters every six months because these filters remove Cl2 from the water and this must be removed for fermentation processes to make sauerkraut, kimchi, kombucha... It is also good to remove Cl2 from drinking water to protect your own microbiome. I didn't give this produce five stars because some competitors have lower priced, higher capacity and higher flow rate filters that also seem to remove tastes and that also work for fermentations.