Since I have nothing to compare it to, I can only go by the relief in discomfort the brace provides me.
Suggestion: A contrasting color for the straps (to better distinguish when the strap is sliding through the slot) would be helpful. Black on black while bending over can be tough in dimmer situations. Also, a narrowing of the straps where they are slid through the slot would permit a tighter fit which I think would provide even more relief (against possible "tourniquet effect").