The mouse is great for me - as I have small hands. I can easily reach the scroll button and positioning feels natural. Itis sturdy and the ridges mean my hand does not slip off the mouse. Like the thumb rest also.
It's Logitech so you expect a decent item. Works seamlessly on windows straight away, worth downloading logi plus software to get the most out of it as can can set buttons differently for different software your using.
Using with iMac. Scroll takes getting used to and it’s very easy to hit the inside forward/back buttons. Have not been able to reconfigure these to page up/down as these options were not available in the app.