I bought platy bottles when they first came out years ago. I have bought two. One developed a small puncture hole, but the other is still going strong. Have had it for many years, and it has performed admirably on dozens of trips. One 2L bag, a Nalgene for pumping, and a filter weighs under 2 lbs and can easily supply water for 2 people on an overnight trip.

For the money, one of the best things I have ever bought for hiking.

One minor opint: they should attach the caps to the bags. But a standard cap from any soda bottle will do the trick...

Bought a Platy when they first came out, many years ago. They are great products. I have had 3 - one I lost, one had a small puncture hole, and the third I still have. I have brought it on many trips over the years, and even with all the folding, stuffing, and dropping, it's still going strong. For the money, best hiking product I have ever bought. Well, except maybe for DEET...

The only drawbacks I have encountered are losing caps (Why can't they attach them somehow?), but they are easily replaced by standard soda caps. The other drawback is that it tends to hold tastes and odors. But cleaning with baking soda and/or bleach takes care of that.

I've had this since it was the Pur Hiker, quite a few years ago. It's very funcional and fairly easy to use. It is a little difficult to pump, so I would not like to use it for more than 2 or 3 qts at a time.

Have been in many different areas and never been sick, so I guess that's the best testimonial!

However, it is NOT a purifier. They tried to sell a "Purifier" cartridge for it years ago, but pulled it when the EPA disagreed. For a purifier, get the First Need. It is heavier, but you can also back wash the filter...