Love the way he can receive and release the ball with either foot. Means he can always have his body in the right position to either evade defenders, or quickly transition the ball. Doesnt need that extra touch to sort out his body position.
His playstyle just exudes this calmness and intelligence...sort of like someone who has it all figured out and knows exactly what needs to be done when.
Also recently his defensive contributions have also come to the fore, really good at recoveries.
And to put it in perspective....a kid barely turned 18 excelling and looking so comfortable at Barca as a LM / AM / DM in a 4231, and a CM in a 433, is COMPLETELY BONKERS.