Adapted to Windows 8, but does not solve the problem of lack OS ergonomics

Adapted to Windows 8, but does not solve the problem of lack of ergonomics of the OS. Windows 8 is poorly designed and not a mouse that will change the problem. If the mouse is working with some dedicated functions, these functions can also be used with Windows 7. I find it a bit too large for my taste (designed for a mobile tablet, or laptop ?? Homelessness is the hard cost). Moreover it is expensive compared to other mice, cheaper, smaller, and with identical functions to set the one who knows.