I'll start by saying that the end result is perfect: A super-stable four bike rack. But one part of the assembly turned out to be more difficult than expected/needed, and that was the repositioning of the two steel alignment pins in the base which required numerous heavy blows with a 14oz hammer to first release, and then reseat, in the adjacent four-bike holes. Had I not had access to a solid concrete floor and hardwood blocks to support the rack's steel baseplate this might not have been possible for me at all, and I'm pretty handy.