My son built this today, and I helped in spots. Overall, this set is cool to see in person, but it's also a little underwhelming. My main problem with it is the space in the cargo area - it's extremely small compartment, and you might be able to get 2 mini's in it, but good luck getting more than that. There are many elements of the design that are cool, though. I especially like how they made use of the flick fire missile technique. I was wondering why the flat plates were left loose but during the final bag it became evident, as you push a flick missile into the spring loader, a blue plate slightly rises up where you use that to press down and fire the missile. But, the lack of compartment space is a drag. This is no republic gunship or even First Order Transporter. Overall, it's ok.
My son loves it though and has been playing with it for hours, so I guess that is what ultimately matters.