I bought this expecting a challenging build with a lot of details, and I was not let down at all. I don't remember exactly how long it took, but it was probably a good 10 hours or so. The detail is absolutely incredible and I'm very happy with it. The only drawback is that it is very fragile. It won't stand on its own, and you have to be extremely careful not only moving it, but finding a place where it won't get bumped or knocked over. I made my own stand for it to keep it upright, and put it somewhere out of the way to avoid it falling over. I also added lights to the eyes to give it an even more devious look, but the lights DO NOT come with it. I tried to upload a video but couldn't for some reason so I added a few pics instead.