Go to a shop which stocks them as well as many other brands of boots. Speak to a bootfitter - tell him what ski experience you have and what terrain you like to ski, e.g. park, powder, piste and that your interested in the Nordica dead money's
He will then either recommend that boot for you, or not. He will then proceed to find a boot which fits your needs and more specifically your feet.
I know you want to find out more info on these boots -
but really I think a bootfitter knows a lot more about this boot and many more than me or some other guy on here who bought a pair a week ago and thinks there sick.