Really enjoyed putting this together. The whole thing probably took me around an hour, it's not an overly complicated piece. Like a regular Lego set, the instructions are just pictures, but they do use a bit of "highlight" around the pieces so you know where the new pieces go. I did notice a few spots where the piece count was incorrect, but it's pretty obvious what you're supposed to be doing so if you pay attention to what you're doing instead of blindly following the piece count you should be fine. There was also a page with about four different "steps" on it that only used a few pieces per step, would have been nice for those to be spread out to make it harder to miss something. Otherwise, the build went really well and I love the look of the finished product. Did end up with a couple extra parts (and they sent two different colors of "eyeballs" so you can mix and match those or swap them out. I was able to fit all the extra pieces inside the chest (functional too, who would've guessed!) so that was fun as well.Great set, will probably pick one up for my son who is also into D&D.