My personal opinion is that Feisol charges way too much for their tripods. I think it has to do with the perception of value. For instance Benro charges a fraction of Gitzo, but they're perceived as cheap tripods. Feisol charges about half of Gitzo, and they're perceived as better quality than Benro. Yet I feel Benro tripods are designed much better than the Feisols.
I've looked at both and played with several models of both quite thoroughly, and in my opinion that is not the case; the benros are nice, but not as nice as the feisols.
Most people seem to perceive feisol tripods as being designed worse than benro because of the size of the metal hardware; feisol uses machined parts, benro uses cast parts. That alone should tell you something about the differences in quality.
That said, the one part of a benro tripod that is designed better than the feisol is the leg hinge screw; benro uses washers whereas feisol don't, so with the feisol the leg screws get loose over time whereas the benro don't, or not as quickly anyway.

