From the many Unifying mice I've just selected M705 because it is the only one to a "normal" price is high enough, that men not cramp hands when working with it. I still have lying around a whole zoo of so-called laptop mice, all of which are so small that they are indeed accommodate excellently in laptop cases, one but after ten minutes of work so that his fingers can not move. And the M705 did not disappoint in this regard.
Logitech offers three-year manufacturer's warranty - if there because you manage to register the mouse. It was not given to me in September 2014. In August, the Logitech pages were still okay and I could get some advice. But this problem will resolve itself, and then I will register my mouse.
If you "not helpful" find this review, please post a comment, what you do not like. This helps other buyers more than meaningless "unchecking"!
Conclusion:
I think this mouse for all therefore awarded 5 stars!