I cannot speak for the Helinox, but found the REI version completely inadequate for me. Granted, like Knot Knormal, I am a size outlier; at 6'9" and 240#. I was under the REI chair's weight limit, but the chair felt completely unsafe with me in it. I think this was the effect of my weight, and longer lever arms, that overwhelmed the light weight construction materials. I wanted to like it, as the space savings would be considerable for me. But, I will stick with my substantial OzTent King Kokoda chairs in the interim. The hammock-style chairs in general do not seem to do well for bigger/heavier individuals, and the plastic/aluminum legs and lightweight materials were a long way from facilitating relaxation.