This is a toy. No, seriously. This is a child's toy. And yet it is of such quality that it really shames the Rubie's Supreme Vader and a lot of the Rubie's and Don Post $50-range helmets and utterly spanks the Hasbro Darth Vader voice changer.
I purchased this for around $55 off eBay. I was very taken with the design, having seen this in a recent episode of Dr. Who where the Cybermen made an appearance in London, and my jaw just about dropped at seeing their amazing helmets and armor.
The construction is great and very well engineered. The pieces fit together very precisely. If you're not studied up on the prop, you'd think this was an original prop, though the differences I can spot are:
1. The back of the skull is only partially covered, leaving the back of your neck exposed
2. This is very symmetrical whereas the prop isn't
3. This is very tidied up, kind of idealized
4. The ears are shorter than the prop, and
5. The neck is very short as compared with the prop
Cyberman experts can probably find more issues with it, but the general public will probably be very taken with this. For me, it's a great display piece.