I just finished putting this together. Once I was able to parse the sparsely-detailed instructions, it went together fairly quickly, with no 'extra' parts remaining. That's a plus.However, I was very disappointed with the quality of the materials used to construct this product, and the overall design. With the exception of six bolts, the bench is held together with plastic fasteners that will lose integrity in a relatively short time-span, especially under heavy use. Cheap metal, particle board and plastic are poor choices for workbench fabrication. Personally, I wouldn't trust anything weighing anywhere near 500 pounds sitting on this bench. I really don't expect that it will last long.On hindsight, the money would have been better spent on quality lumber and hardware.