I do rate him..he has his qualities, especially his standards r incredible. His passing and technique r ok too and he is in general a good footballer. I m still undecided, if its enough for the highest level, as he looks bit headless sometimes and his movement and positining arent good.
I would never guarantee anything where Calhanoglu is involved, after what he did to force his move to Leverkusen. He is not the smartest candle on the cake IMO, but I rule out a move this summer, as Leverkusen really have an exciting team with lots of great talents and they r ambitious, so they wont sell any of the important players for a reasonable price.