I have the squeeze system and just had a chance to try it out. We are camping on our property in SE AZ and had a big T-Storm last hour. There were several large puddles so I decided to try the Sawyer system.

It works, as I expected it to. Dipping the samll bag into the puddle did nothing. You have to inflate it first. The best way to fill it may be to use the backwash syringe to fill it from a puddle. Flowing water may inflate it, though.

The water was clear and tasted like bottled water. No surprise.

On the negative side (only because Sawyer brought it up), I have yet to find a water bottle that it fits on, and I've tried many. Also, it's not tactical, the bags make a lot of noise.

Next, I have to find a convient way to carry it.