Powerful D is a bit antiquated. They just finished 30th in DVOA and 32nd if weighted. They'll be better this year I'd imagine with the additions and the draft, but I'd be ecstatic if they're average with the O they have. They certainly have some enticing pieces, but I would pump the brakes for a while. This is a team who projects to have their outside CB's be Steven Nelson and David Amerson right now.
Not something I'd be thoroughly excited about if I were a Chiefs fan.