The ergonomics and overall functionality of this model makes it the perfect mouse for me. Never had any issues with the unifying receiver, it's thin enough to just keep in a laptop even when in a bag. apparent design and quality change in new revision...  Read More

The basic hand feel is great--both the shape and the matte surface--and the clicker is delicate yet satisfying.

Using the scroll wheel is awkward and tiring. The cursor jumps around the screen whenever i move the mouse. Mouse wheel is clunky, especially for clicking.

It advertises the batteries will last 36 months. As of today i have it 19 months and it started to malfunction. The battery gets loose, i then have to use the metal tab to tighten it. And here we are 6 months later, and this one randomly goes out too....  Read More

Where they once had one of the smoothest and longest spinning thumb wheels, now there is is a stubborn and unresponsive ratchet. Use of the side * requires hand repositioning for each use.

M705 has left click issues with edge and chrome. New logitech options software has nowhere near the options that set-point software has. Imo the options software is *.