No worries. That’s part of the reason why I posted, I was curious about more experienced ppl’s opinions. I have one that I currently only use when we have power outages in my area, which happens about 1-2x a year after the winter/summer storms. So no heavy use so far. I live in the city, if anything ever happened to our water supply it would be full of everything you can think of. I didn’t find any filter with a longer list of tested substances, so I liked it as a backup solution. I wouldn’t use it as my sole option. I was planning to take it camping this year to do more testing. The Malawi study showed that it was good for >1000 uses so ~3000+ liters but that’s obviously still limited. Then again, the MSR Guardian filter is good for 10000+ liters. Price-wise that seems comparable. When I was deciding on filters to buy I had read that the MSR filter also has a shelf life of 5 years or so but I can’t find that any more right now. So maybe the info is outdated.