"I have an 11 year old son that loves Harry Potter and Legos. When I saw this astronomy tower, I was super excited. It's a very large building and there are so many little details like books on the bookshelf, candles in several places, a table covered with little plates and food, spell books and a broom. All the lego characters are cute too and it's fun to try and figure out who they are. My son still has 1 bag left to build, but I am so impressed with this set. I'm excited to see the whole thing put together, but the little individual buildings are neat to explore. It is a bit difficult to build as there are so many tiny pieces, but there is a huge manual that gives detailed instructions to tell you where everything goes. So as long as you follow it, you don't skip anything. I would highly recommend this to anyone who loves Legos and Harry Potter."