Right mine arrived yesterday and here is what I think.
One the disc side of things I knew that the UK was only to get a single BD and not the 6 disc set that the US gets which is a real shame but luckly for me I already have all the extras on the various DVDs of this movie I have bought over the years, but seeing as the US set is locked to region A and my BD spinner is not multiregion I as many others were stuck with the UK edition as my only option.
The movie is presented in full 1080p/24fps and looks absolutly stunning and knocks the socks of off the previously released BD.
Now then my verdict on the actual Terminator Head, its is made of injection moulded plastic parts which fit togher very well, IMHO anyone expecting the head to be made of anything other than plastic had their hopes set a little too high. The head is relativly lightweight due to its plastic construction (maybe to keep shipping costs down?) but according to a cousin of mine who has the US one it sounds exactly the same. The sound is rather tinny but what do you expect referance level sound? It does look the dogs with the eyes lit up.
Now it will all depend upon how you intend to display this I suppose as to if you feel it is worth buying but personally I am happy with my purchase and look at my photo of it on display and tell me this does not look COOL atop of one of my DVD cabinets!