"This is an amazing set and challenging build. The packaging, design and instruction book are all stunning. Just opening the box is special. The build is exciting and instructive. The four boxes contain a combined 40-bags. That breaking up of the work makes it all seem doable.
I will agree with some reviews that call the work "often repetitious." But, that never slowed me down. The most challenging part was working on the larger tower sections. Connection of those could often lead to disaster and rebuilds. The fragility of the set (because of the ball and pocket grasping system) is often a surprise as one snap can cause a cascade of destruction.
But, once done, you have a gorgeous set that is a must-have and a conversation starter. Most visitors end up taking picture of it - it is that special."