He doesn't suit Atletico, I wouldn't look at Goals and Assists only.
If you read Atletico fans talk about him they'll say he is very good, he likes to playmake and drop deep, he isn't a target man and would be a False 9 role.
That being said, he can get frustrated when he has the ball and the team is static around him, I think he would be more suited to us.
At that price and wage structure we should be all over that. He can play False 9, on the wing, or attacking midfield. Fits the "All Rounded Player" mold we seem to have lately.
Edit: Also, we hardly go wrong with Former Benfica players :)