Top critical review
Faulty mouse, n̶o̶ some service from Logitech
on 15 August 2017
The mouse worked nicely for a little less than a year, then middle-click button stopped working correctly. I looked online and saw that it's a common problem with this model but there's no easy fix to it. Now another button stopped responding altogether. I opened a case at Logitech support site but I got no response. Buyer beware.
--- UPDATE 2017/09/03 ---
So immediately after posting this review I was contacted by Logitech Support, which is great. However, I remember well that it's two months after opening the case on their own support site.
From the moment they contacted they acted super-swiftly to send me a replacement and follow up on the case. The replacement works fine.
I cross my fingers that it will last longer than it's predecessor.
Updated score from 1 to 3 stars. The product itself is great when it works (5 stars) but I have little confidence in it (1 star), support is potentially great but my personal feeling is that more of them should operate Logitech's own support site rather than read reviews on Amazon.