Strongbacks chairs very comfy, had nothing but problems with these chairs. Bolts break....
I've had a similar experience with my beloved Strongback chair...though it sounds like not as severe -- I lost one bolt. Still, I love the lumbar support -- still my most comfortable chair. (Well, the Lafuma lounger is the most comfortable for napping)
...this has become my favorite chair. It's light, comfortable and folds nice and flat, but wouldn't you know, REI discontinued them.
This REI folding chair is my go-to when I need easy portability or just when I want to be close to the ground.