Quality control. It came well packed and protected. The problem is that Part B Left Bottom panel was a mess. The joints had large gaps with dowel rods sticking out. It was crooked and not close to being usable. The person who checked this unit for packing and shipping should be fired. Result is the hassle of requesting a replacement part, waiting for the part while the rest of the unit is in two rooms. Much more efficient to do it right the first time. As a result we do not recommend purchasing this unit.