"I purchased this item for my 10 year old nephew who is a huge Legos fan. I wanted to buy him something that would take him more than just a little while to put together. The package arrived yesterday and he decided to start with the free Christmas Legos that came with this product. At 5:00pm he decided he wanted to start putting this together. I was able to skype with him for a couple hours when he was putting it together as I am in AZ and he is in WA. He worked on this until 10:00pm and got up at 5:00am this morning to finish it. Poor kid has school too but wanted to finish it so bad he didn't care about sleep LOL. The sheer enjoyment on his face was enough for me. I wanted something that would be a little bit of a challenge for him and he truly enjoyed every second of it. I would recommend this to anyone who has a child that loves a challenge or just loves putting Legos together."