I think he is an excellent player who is quite overlooked. The thing about him that really stands out in my mind is his excellent defensive positioning...he's always making quick movements, covering for teammates, moving around constantly so that he is in a good position. He's not a true DM, but he really acts like one by covering a lot of the pitch, favoring defensive positioning over offensive chances. I know it's virtually unheard of for a CM to have *Covering, but he does a great job at it.
He has fantastic stamina. I gave him the 84 because he doesn't sprint constantly on the flanks like a winger, but makes a lot of quick and sudden movements with occasional bursts (thus the 73 for aggression). With that said, I wouldn't be opposed to upping his Stamina and Mentality a notch or two.