Serves its Purpose
A great bottle for on the go situations or areas with plenty of water sources. If you're going on a longer multiple day hike, wouldn't recommend carrying just this. Can be annoying to keep stopping to refill and if there are no water sources around for awhile, it is a pain in the arse to fill up other bottles using this. Overall very satisfied with it. Has filtered some very, very nasty water with no repercussions.