I bought synergy because I have a multipc setup, however synergy just doesn't work with regular mmo on slave pcs, the sensitivity is off, your camera will turn around very fast without you being able to control your character, its impossible to fix this and it does it on every single mmo game where you have to control the camera. Mouse without borders has this problem too.

Input director is the only software that doesn't have this problem so you can easily control your chars on slave pcs too. On top of this its free, I feel like an idiot for buying synergy. I was about to give up multiboxing on multipc because of this.