At first, I put all his limbs together to the torso first, set him up on the base, and then tried to add the big and heavy cape. Nope, didn't quite work, had a tough time inserting the 2 pegs at the back of the cape into Batman's back.
It was easier after I got him off the base, attached the cape, and then putting him on the base.
The parts(limbs, upper body, etc) need a lot of pushing to push them all the way in to interconnect.
When doing this, I suggest taking his head off first, easier for you to maneouvere and push a headless upper body into the lower body.
Anyhow, it's plastic. The final product is pretty good, but if you're nick picking you would see the cape has little plastic deformities here and there, so the moulding isn't that perfect.
Most of the details of his armour's metal wire mesh is intact, but some parts, especially the parts at his back that would be covered by the cape look 'melted' together.
Anyways, I'm pretty happy with it. Nice.
But, I think something is missing from the prototype photos, the broken glass pieces on the bat signal on the final product.