We also made a bunch of other smaller ships and vehicles and we fought off the enemy aliens together (other random toys, boxes, etc.).
Nice bright colors. You can make interesting creations and it's not too hard for young children.
Anyway, long story short. He liked this a lot. I will likely buy another one so we can make more/bigger things (but there's PLENTY in the 198 piece box to make big stuff). But at this price, you can easily afford two or more sets to make huge things. :)
Highly recommended. Check out my full video review.