Check out the new video review up in the Video forum. Pretty neat concept. My Katadyn is 1#, this new Sawyer is only 3 oz. Huge weight savings. Easy to use, fast, and now I can bring more food because of the weight savings...I like to eat! 
We carry the most popular models of filters that sawyer manufactures. The Sawyer Squeeze and Inline are by far the best sellers in the line. Click the link to Story Creek to take a closer look and see more video reviews.
http://www.storycreekinc.com/m-80-sawyer-water-filters.aspx