Reus is by far the best player I've used in this Fifa. This is comparing him to the likes of futmas son, prime raul and some other great players. He is definitely an endgame player, and is actually worth the money provided you don't have any of the other Reus POTM cards. I haven't tried either of his other cards, so I have no way of comparing them, but for under 1 million and a guarantee he's going to get an upgrade to at least a 92, I'd say he's worth the money.
I started off trying with at CAM and striker and interchanging between the two, but as I decided to swap from the 4-2-3-1 (2) to the 4-1-2-1-2 (2), he had to play ST, on the left to finesse across goal, as he dropped too deep into the midfield in the latter formation, as well as ran out of stamina very quickly.
Overall, I would say this card is a complete striker and that striker is the best position to play him at, but he'll still play amazingly at cam.
Almost all of these games were in WL.
High icon tier shooting - finesse meta is suited perfectly for him, but he isn't only limited to that with 95 shot power and all other shooting stats above 90.
Very quick - running, turning, shooting, skills, you name it. All of it is done ridiculously quickly. Actually feels a lot faster than 91 pace as well.
Great attacking run - the best I've had from any player all game. Seems to manage to stay in line with the defence until the last second every time.
4* 4* combo - left foot felt great, although I didn't even end up using it that much, very easy to just use his right.
Great reactions and composure - the ball will come out of his feet so fast and he is always reliable.
Great passing stats for quick 1-2's - didn't struggle with the longer balls as well despite only 77 long passing.
Low aggression - he doesn't fight back for the ball and is easily pushed off.
Stamina - only an issue at cam, more than fine for ST. Hopefully getting boosted above 79 as his stamina on his rare gold has increased a lot on his H2H card.
He also has a tendency to drop back when cam in the 4-1-2-1-2 (2), leaving him out of position for attacks as he didn't push up fast enough with medium attacking work-rates, as well as draining his stamina.