Although ... 
... that is an in-range
level 20 capstone ability, yes?
Armor + 6 Skills , versus
Barbarian class abilities and prc support.
Also a high reflex save.
I don't think prc support should matter.
"Person" > Expert ... but yeah, not by much.
Especially after say level 6.
Without Trapfinding early, there's a party slot
it doesn't fill at all.
I would say its by a decent margin, its comparable to the difference between barbarian and warrior.
Barbarian 2 hp/level, +4/6 hit and damage, essentially another high save, double skill points/level 5 damage reduction and some fairly meh class abilities.
"person" gets 3hp/level, +5 to hit, 2 more high saves and 2/3 more skill points, and better weapons and armor-which amount to ~+1 to damage and AC
