Power armour is a wearable VEHICLE which is why you had to be taught to use it by BOS NCOs. I always thought that power armour should be better than the tinfoil versions in FO3 and NV. I mean, going up against super mutants who just have hunting rifles should have been the same as hunters shooting at a M1A1 tank... that is to say, the tank should just shrug off the damage but in FO3/NV the armour got shredded.
I read a lot of books that have power armour in them and they all point out that the suits are basically walking tanks. Their weakness is always power, power, power. and occasionally joint shots. The classic powered armour suit was Robert Heinlein's Starship Troopers (not the crappy film that did away with the main feature of the book). Those suits could walk through a nuclear blast. Another of my favourite author's (John Ringo) has power armour users taking a knee, putting their fists to the ground and firing rock jacks to stop them blowing away in the nuke blast.
OK it's not Fallout but it just shows what an Armoured Combat Suit should be like. It's a tank that you wear, not just an extra suit of clothes. Something that could look into the face of a nuclear explosion and go "Cool, I won't have to clean the blood off my suit now!" ...
Oh and the AID in the quote above refers to an Artificial Intelligence Device... basically a personality that helps the suit user... a bit like the prototype Medic Power Armour assistant.