I think Hot Toys' design philosophy has been steadily moving away from the Gokin-style 'perfect transformation' of the older Iron Man figures and towards making a display piece with interchangeable bits and pieces - which I'm not going to pretend I'm entirely happy about, especially when their 1/4 Iron Man has all the bells and whistles the 1/6 figures used to have.
I didn't mind so much with the Mk 42, for example, because I thought the battle damage and articulation made up for it. Mk III here, on the other hand, is currently speculated to have no real torso articulation to speak of.
I want to love this thing, because I still think the first Iron Man movie's the best and because it fixes all the proportion and accuracy issues of the original, but it's making it hard for me to do so with so many features scaled back compared to a six-year-old figure - hate to say it but I'm feeling more and more like skipping this and trying to track down a Mk II Unleashed for a sensible price instead. I'll probably hold off on that until I see some reviews, though.