Rob 4 This rack was easy to assemble. Although on unpacking, some parts did have some rust staining (oxidation) on them, although the parts themselves were not rusted. Something to be aware of.One put together, the rack is easily adjustable with the knobs and sliding the parts. The tightening of the knobs then makes the arms/rests stable and they seem to support the weight of the barbell with plates fine. I've only gone up to 80kg so far and that has been OK.It seems like a good rack for the price point and I will update the review once I've had it for a longer period of time and with heavier weight usage.