I'm very sensitive (allergic?) to my great tap water (small town) even in cooking so I tried Brita and had same issue, then tried PUR and have been using that for 5 years. The last year the filters took forever to filter requiring me to take out and shake every time! I found Waterdrop on Walmart's site, researched it, and gave it a try and Am I Glad I Did!!!! It filters fast! so fast I was afraid it wouldn't work! It tastes great, no problems with my issue at all, and the filter lasts much longer than the 2 month Pur filter! Regarding taste - filters take out minerals that give water the taste many find missing in filtered water as I have issue with 1 or more minerals that's exactly what I need, but it also filters much more than Brita and I believe filters faster and lasts longer than even Brita! This is a Great, Fantastic Buy!