I have been looking at these and would be very interested in hearing about your experiences. Seems to me it would be good in camp as well as a back up at home. I have a two-stage Katadyn pump filter and also carry Micropur MP-1 as a chemical treatment option for trail and camp, but a gravity feed system would be a nice addition. A bonus (I would imagine) is the ability to store other clean gear in the bucket when moving about.