From the Manufacturer
LEGO? EXO-FORCE? Mobile Devastator (8108) – Nothing can stop the rolling robot base! Crushing EXO-FORCE? defenses, here comes the unstoppable Mobile Devastator! Commanded by robot leader Meca One, the ultimate wheeled fortress opens up to reveal an elevating battle tower with rotating laser cannons and energy sphere launchers, twin scout fliers, prison pods with skeletons, and a legion of robot warriors equipped and ready to deploy into battle. The only thing that stands in its way is Ryo in the Blazing Falcon battle machine with slashing claws and firing rocket! Mobile Devastator measures 23.5″ (60 cm) long and 13.5″ (34 cm) tall! Sides unfold to reveal robot base! Includes 10 robots and 2 skeletons! Includes Blazing Falcon battle machine and Ryo minifigure! Includes special code to unlock extra content at www.EXO-FORCE.com.
Product Description
Smashing through Exo-Force defenses, here comes the unstoppable Mobile Devastator. Commanded by robot leader Meca One, this massive wheeled fortress opens up to reveal an elevating battle tower with rotating laser cannons and energy sphere launchers, twin scout fliers, prison pods with skeletons and a legion of nine robot warriors equipped and ready to deploy into battle. The only thing that stands in its way is Ryo in the Blazing Falcon, a new experimental battle machine with slashing claws and a firing rocket. Includes special web code to unlock content at www.EXO-FORCE.com. 1,009 pieces.
My husband has an obsession with Lego Exo-Force. When I saw this I had to get it for him. We actually like to build them together. It took about an hour, maybe a bit more with the 2 of us working on it. It was a lot of fun
I would imagine that this would be great for children, both to train them in dexterity as well as skills in following directions, which leads to a great reward 
My son is 11 and loves the Exo-force Lego line of products. They are challenging for him to assemble and are interactive when complete. He follows the detailed instruction manual and creates his own toy. Can you ever go wrong with Legos?