"My son is 4.5 years old. He loves his many Lego sets, especially Ninjago. While we usually try to buy larger sets to build together -- often based on the minifigures of his favorite characters -- we took a chance and purchased this unconventional, re-buildable Lego Movie 2 set. Unexpectedly, he has spent more time with this set than any of his others. He gets so excited to break each character apart and build the next one. He can build each version of the queen quickly and independently. I strongly recommend this set and I hope Lego produces more sets of this kind!"