I can't fault what he chooses to teach about, except for his occasional (rare, even) disparagement of other denominations. But does he ever acknowledge speaking in tongues, or faith healing, or other spiritual gifts?

In general I am a fan: he's a paragon of textual application and well-founded research. But he seems closed to those things. If you have evidence or knowledge to the contrary, I'd be happy if you pointed me to it.