For several years, I've only used Colman's Potable aqua tablets for water purification on my section hikes (~5 days).

I have found them easy to use and I don't mind the taste, and much lighter than a filter setup, they are commonly available, yet I never see them mentioned on WB.net.

Is there something I am missing. What is the catch to using them? Why don't more whiteblazers use them?