That's not the only mouse-related thing it does poorly. The workstation I use at work came with Unity as the default. I decided to give myself a week to get used to it but gave up after only 3 days. Using Synergy with Unity is a complete pain in the ass with that menu thing that is on the left side of the screen. It was constantly activating when I moved my mouse to the other computer or not activating at all when I wanted it to.

After 3 days I just installed Awesome and went from there. Unity provides me absolutely nothing that I want that Awesome doesn't. The only thing it does for me is get in the way.