What's your guys initiative like? Does he have Improved or just high dex?
30ft reach is very good. And with the Knight difficult terrain ability/feat thats really good. DM'd an adventure just a wee while ago in which one of the guys in the group was using a half/ogre Knight with a reach weapon...tended to sting a fair amount for everything trying to approach him...especially with the fact that there was another wee guy in the group who was a duelist/halfling who could tumble like you wouldn't believe and would hide under neath the knights attack and attack with Rapier and dagger....very dangerous combo I might add...
