"LEGO by numbers is what this is as a build. If you like paint by numbers you will love this set, if you don’t than don’t buy this. I love Star Wars and was looking forward to doing Darth Vader. I might finish before the end of the year. It’s not hard, I am just bored since I realized I don’t have the patience for LEGO by numbers. It is easy and I know I will love it when it’s done but I doubt I will get another one. I thought the Harry Potter crests are cool, but I will definitely pass on doing this sort of LEGO build again. I do agree with another review, the bags should be numbered. But the advent calendar tray is fantastic for holding the studs. Just put them in order of 1-12."