Very solid build, unnecessarily heavy duty. Main complaint is that the strength curve is uneven throughout the movement depending on how you set up the lever arm. With some settings, it will give way too much assistance for part of the range and then almost nothing for a different part of the range of motion. I previously owned the inverse curl made by dynamic strength and fitness, and the model sold directly by West side before Louie died, and both of those had a much better more consistent and even feel than the rogue model. Still, overall this is a great piece.