Aye,  read a lot in here that he is a good player. 
What we need in midfield more than anything is a different option to Barkley.  We need more than one striker sure,  but we also need a different midfielder to swap out for Ross.  That's his weakness,  noone to displace him in the team no matter how well he doesn't play.  I'd rather us sign a good creative player,  whether it's the Turkish lad,  Wijnaldum,  Praet,  Tielmans etc just someone else to make Ross have to play for his place. 
Saying that now we will have a competent manager I could see Ross really kicking on this season and becoming the player he threatens to be