I've been using a Logitech M557 mouse for about 6 months, I like it a lot, sometimes less than $30 on sale. It is a conventional 2 button Bluetooth mouse but works great, accurate tracking and no connectivity issues, still using the original batteries. There is one additional button and the wheel push and wheel tilt left/right can be programmed (to a small extent) with supplied OS X software. I modified my M557 innards to get the wheel to rotate freely without the old-fashioned ratchet click action.
I can reliably wake up my Mini after a nights sleep by just moving the mouse or clicking it, which my Dell Bluetooth mouse could not not do reliably.
I can reliably wake up my Mini after a nights sleep by just moving the mouse or clicking it, which my Dell Bluetooth mouse could not not do reliably.