I have the Steripen Adventurer and have been giving a try on my last few trips. I used the Hiker Pro filter for years but was looking for a lighter alternative and was tired of the cost of the replacement filters. Although I find the Steripen easy to use, and have had no complaints yet, I do worry about durability. I bring backup tablets just in case. Take a look at the pictures at the bottom of this SHT trip report for the water I was drinking. I was using the Steripen and had a hard time with the colored water. Not sure if my filter would have made any difference, but it did cause me to wish I had the filter on this trip!