Your English skills are better than most Englishmen I know!Yeah, while he can play different positions and Schalke (German youth team as well) did try him in various ones, I think it's become pretty clear by now that he really is at his best in a more CAM type role - in a way a problem for him atm, because his type of playing style doesn't seem to fit into the current Schalke setup that well.
I think it just plays to his strenghts more, than say being a winger. Can keep the ball in tight spaces, good skills/turns/first touch, good and quick passing/vision - would it make sense in English if I said he's quick but not necessarily overly pacey?
Other than that I think he's in some ways more the Lallana type imo, maybe a bit of Coutinho.
Personally I haven't really made up my mind about him - generally I really think he has the potential to become a real top player, but I find it especially hard when talking about Schalke players - individually that team has many players that I rate, but it often doesn't seem to work so well as a team, making individual players not look their best imo (sorry, overly complicated, my English skills are off on weekend)