I ordered this piece back in mid February, and just finished it a couple days ago. Like my last review, bad then good. First, not that much at all. The tracks were a pain in the butt to put together, needing two pins per track piece. When it came to the assembly of the lower hull, I recommend getting a vice, or some easy to remove tape. This is because the sides of the lower hull were bent out a little and made fitting the pieces in a bit of a test of willpower and patience. But the last, and I would say the most testing part was the wheel assemblies. Word of advice, pay VERY close attention to which clear plastic 'bearing' you put in them. I made a slight mistake and put the wrong one in, but a quick shave and it fixed it up. Now the good. To be honest, I have no idea where to begin. The details, exquisite! The amount of interaction parts, even better! All hatches on the turret are fully operational, to include to lifting and rotating Commanders hatch and piston supported Loaders hatch. The rear ammunition door, and even the grill door on the back deck to the engine compartment. One improvement I definitely would have made in regard to hatches would be the Driver and bow mounted gunner hatches. You can glue them in place open, or closed (mine are closed). And of course, the main gun. Regardless of what model vehicle you build, Henschel or Porsche, the main gun has a simulated recoil setup that you can, gently, push the gun barrel back and see the breach and recoil springs actually work! In the end, I was very, very pleased with this product and highly recommend to any who want a real challenge.