First thing to pay attention to: PGP. There is a reason he is up there with the highest rated legends for goals + assists per game in Fifa. This is one of the few cards that I play with and feel like I am controlling the actions of the real player. He is amazing in every way, especially with an architect chem style (93 strength OP). He fits into any play style and with players such as inform Yarmolenko/pulisic and Reus (I think Reus will get an inform when he returns potentially as early as January), he has some amazing links for hybrids. Certainly worth the price... actually this is so undervalued. I would say he should be as expensive as Cristiano Ronaldo because he feels about as good while using him. On top of all this, he is incredibly fun to use. I had a FUT Champs game in which I scored 11 goals with him. The guy was terrible and I was on fire, but that is unreal. BUY HIM or save for his TOTS, either way, worth while.
Pace (don't waste chem styles on his pace, he doesn't need it. Use something that will upgrade either his strength, passing, or agility)
Strength (with architect chem style)
Passing (with architect chem style)
Low defensive work rate