I have used that one. It's extremely inexpensive, cuts really well, but the sharpness doesn't last as long as I would like. But at that price I have ordered a few of them and just replaced when it gets dull.Kev pretty much loved everything about the one I have on my website ....
YouTube - Review of the Emergency Zone Folding Saw from ReadyPro.org
Link to the saw... http://www.readypro.biz/folding-saw1.html
X2. The Sawvivor is compact, solid, cuts straight, and can stow an extra blade. Definitely my first choice.I highly recommend the SawVivor instead. It is much better engineered than the Sven, Laplander, or Gerber. It's priced about the same and is lighter, barely, too boot. You can even carry two or three different blades for different work, all inside the same housing. Having used all four I think the SawVivor is best.