Scheffler is a great match-up problem, not only because of his size, but he has incredible athleticism, speed (for his size), leaping ability, and excellent hands; he's a human highlight film. I think he led all tight-ends in '08 in average yards per catch.
What you won't see in the stats is how he outworks and out-physicals his defenders, how he's not afraid to put his body on the line for a catch, and how he's super-clutch under pressure. He will never quit on a ball thrown by Stafford, even if it's just to deflect it from going to an opponent. He will protect your quarterback. Here's a highlight film someone made; that'll get you pumped up. :)
His main problem has always been his health, but it's probably directly connected to the way he plays. Stafford will love him.