It looks great, but I really don't see the point of it, especially since it's using the Tamiya torsion bars and arms. Unless you're keeping it natural, all that beautiful metal will be hidden by paint and plastic is easier to alter and add to.
I do get metal upgrades that offer an advantage: bearings, beefier arms, etc, but metal for the sake of it escapes me (again unless it's kept that way, I'd love an Aeromate Tiger, but no way would I paint it).