Bony is a good striker, by far the best in the league. His physique is outstanding, defenders can't fight him off the ball at all. Furthermore, he's a very good finisher who remains calm in front of goal, 1 chance 1 goal. His down side is that he does moves less than Vucinic in a match, and doesn't really pressure defenders or make runs off the ball.
The guy can do it all, left foot, right foot, headers. He's been flirting with Russian clubs for a while now, so there are some clubs in the market for him. I think he could be a success in Turin, but it's always hard to judge strikers in the Eredivisie. He's been dominating the league so it's safe to say he has surpassed the Eredivisie.
Don't know what his price could/should be.