Can someone sum up what this guy's strength's are and his characteristics?
Most obvious strength is his size and physicality. He doesn't have too much acceleration but at top speed he can break the lines. So it's a pretty formidable combination of size, strength and some speed.
He has good close dribbling so he can actually run with the ball most of the time. But he's a step below the Pogba/SMS types who can slalom defenders.
He has technique to hit long shots and long passes. Sometimes it's erratic though.
I would say he's like a 8/10 in most areas of the game but never really a 10/10 in one strength. He could use some seasoning overall because sometimes his decision-making is too ambitious.
And for people doubting his pedigree, he did originally start out at Bayern.
I think Klopp's style in no way fits him. He lacks the acceleration and agility to press like Klopp wants so sometimes he will be a step late and look horrible to casual fans. But as a Juve fan you know he will never be asked to do these things so you erase them from your evaluation.
If he is in a compact team and the opponent has to try and play through him, he will knock them down and take the ball most of the time.