"This set was awesome! But I had to rebuild the tan colored brick pieces. Also, I kept having to remove the maze and maybe the tan colored pieces to fix some lego pieces that were coming off of the base plate. I made up my own maze, but it had no traps, but did have long dead ends, and start and finish tiles. I mean, when I saw the extra pieces that the set comes with, I was surprised about how many tiles there were. But, this set was a little bit pricy. I added marbles and Lego soccer balls, and it was an excellent combination! Definitely buy this set if you like technic lego sets."