Get this guy for 5mil and watch him score 3 goals per game. no joking, i think he is some kind of bug. really just give it a try.
He has awesome speed, acc, agility and dribbling
on top of that he has good finishing and best of all plays great with both feet
MY FAVORITE PLAYER
He has one weakness tho - composure
Due to this skill he tends to miss often clear cut chances
Also, I use one trick with him:
set up your attacking corner to aim at first post
set up Quintero attacking first post
set up tall players attacking far post and standing at far post
enjoy

You can use any small player for this, tho, even better if he has good heading and composure