I don't really disagree with your overall view on Tosun, but I have to take issue with the idea that his link up play is 'very good'. It's alright, he does a job, but it's really not 'very good'. He's played a couple of nice passes but he's also been found wanting plenty of times when the balls been played up to him, and he's not exactly dropping off and spraying balls around left right and centre.
Based on what we've seen of him so far, I'd have to say he looks the absolute epitome of average. No stand out attributes, just a pretty decent all round footballer who can score when given good chances. Hopefully there's more to his game, but he needs to start showing it soon because the knives will well and truly be out if it turns out we've seen the best of him.