Recommended by a 3rd world traveler - Katadyn Pocket Water Filter

I admit I have not yet used this filter. I purchased it more to have on hand in case of an emergency need for water than for camping trips. It was highly recommended by a survivalist blogger I follow. He travels the world and has been in many 3rd world countries and said he has used the same Katadyn pocket filter for at least 20 years. He said to buy one NOW so I did. It is very nicely made, but a bit heavier than I expected. Not too heavy for a backpack but a bit large and heavy for a "pocket", even a cargo pocket. I hope I never need it for the reason I purchased it, but will definitely be taking it on camping trips to try it out, and I am considering buying one for each of our adult boys. It comes with a roomy case that easily holds all the tubing and lubricant as well as the users guide I printed from this website.