I was looking for this set since the fan submitted Lego Ideas kit was not approved by Lego. We all knew they had something in the plans and this is it. Let me first start by saying this is a very enjoyable build. The platform, extras, and interchangeable arm are a brilliant idea, adding context and detail. The Hulkbuster armor itself has enough bulk and detail to make any fan happy. I wish the knees would bend, but I guess the designers opted for stability and more detail instead of actual knees. Can't really blame them. Up to that point I was back to being a little boy, excitedly building the figure. But I cannot express enough disappointment at the choice of LED light to represent the ARC reactor. Instead of the bright bluish white, as it was in the movies and on the Lego box kit, Lego opted for a (very much cheaper) yellowish/orange LED and has you place a blue translucent block in front of it. My guess to try and mask the color. It does not work. It is an horrible choice and would ruin the set if it wasn't such a cool build. For that reason I am knocking one star out of what should be a perfect 5 star kit imo. If you don't mind such details, by all means go for it. It is and looks pretty awesome. But I can't help but wish that Lego would re-issue the LED light to every owner. It is that bad. Realistically, I will be looking for a replacement and will refrain from pre-ordering sets like this until they are reviewed.