BUT:
For someone like me with big hands, because the little finger and the ring finger always then loops over the Mauspat.
Here were two or even three different sizes (in accordance with the glove sizes for example) is recommended.
Hotline:
Well, according to my question: "Does the mouse on the Mac OS X 10.10.1" ???
Came the reply: "should, but know we do not know the exact" !!! Should ??? running, or not running ???
Extremely weak ... (Manufacturer / Sales Hotline Fa. CSL)
So ... even testing ....
But this I can now, after some testing, provide an answer.
Yes It runs really well on OS X 10.10.1. But the "thumb buttons" (forward / backward step) are not supported.
An otherwise it runs flawlessly on the Mac.
OS X Games:
You then want to play a game, here eg Agricultural Simulator 15 for OS X makes the mouse absolutely crazy with me. All menus are repeated in succession "scrolled" without the mouse is touched. Here no play is possible with this mouse.
Solution for OS X Games:
the Logitech mouse driver for OS X, download the Logitech site and install (LCC = Logitech Control Center)
Then the game enjoyment with the LS 15 is no more obstacles.
The two thumb buttons can not be addressed as well with the Logitech driver.
Conclusion:
Real alternative to the Windows 7. 8
Only limited use in Mac OS X 10.10.1
Point deduction because of "would ... Hotline".
and the limitations under OS X, despite my request Hotline.