I assembled this in less than an hour. The instructions are graphic and simple, not a detailed narrative.Some parts look slightly different than the graphic, but you can figure it out.The hanging brackets are somewhat lose-fitting to the hanging bars. In the leg-lift/dip position, you really need an extra set of brackets to hold the chin-up bar to the wall along with the mounting bar, otherwise it feels loose and unstable. I'm investigating buying another set of brackets, or making my own.The machine itself seems sturdy. Time will tell.