I think he can be solid, and even a decent starter down the line--which isn't all that bad for a third round pick. I think his blocking will improve. He certainly has the size and seems willing. However, he may have great hands, but he'll likely never be dynamic. I hear the reports of his great hands, but then I read this:

S Chris Banjo might have been the most effective defender Monday when the safeties and inside linebackers were matched against the tight ends and running backs in one-on-one coverage. Banjo went 3-1, doing a great job twice against TE Richard Rodgers.
It might not really matter with how dynamic our receiving corps could be. If the receiving corps wasn't so good, I'd be a lot more worried about the TE position.