For the first few hours of use I noticed the mouse movement very jittery. This is a very common problem as I found out. I tried several things first such as:
- uninstall USB Overdrive
- install Apple Magic Mouse drivers
- change the wireless router channel to avoid possible interference
- tweak mouse track speed settings using MouseZoom preferences
- restart, restart, restart....
Finally I decided to try the solution suggested in this thread, using this pdf as a guide. Basically it is a hardware hack to make the bluetooth module antenna longer. Proud to say it worked perfect when all else failed - this despite having my mouse less than 3 feet from the box on the floor. Pfff....