"This set has been a blast putting together with the family as everyone got to take turns building different parts. Kids are excited that it has many moving parts and that it shoots. Does have a instruction booklet that helps a lot when putting this together. My mistake was putting some on wrong and couldn't get propeller to move correctly so needless to say had to brake down parts and rebuild. Lol The legos are packaged in different bags and are labeled so it made it easier to put together. I'm amazed at how huge this is when put together. And you get plenty of Lego superheros to play with. So far this set is the kids favorite Lego set they put together. For any Lego fan who loves avengers this is definitely a set to own in your collection."