Marseille midfielder Gianelli has been heavily linked with Inter and Valencia. Today, the player’s agent and father, Willy Ndagi, spoke to RMC about his son’s future:
“OM [Olympique Marseille] said that they will be forced to sell Gianelli because they will not be playing in the Champions League. The club prefers to sell only one player as opposed to three. The Italian clubs are interested, while Valencia have stalled. The club will make a decision and they even asked to to not reveal too much.”
Source: FcInternews.it

How good is he and how different is he then medel?
He is box to box, good dribbler, can take ball forward. If he come, either kova or guaro could force to leave
I don’t see the point of selling Kova to get him. Especially if he costs about the same price, just keep Kova then.. If he is coming no matter what, I agree with with your description although 20 mil is overpriced
Wrap it up Inter!