alt Hacker NewsI loved my Performance MX. I finally had to replace it at work (software wouldn't install after migrating to Windows 11) and the MX Master 3 I got seems much ergonomically worse to me. I also am not a fan of the thumb wheel replacing buttons. Only thing I won't complain about is that the resolution is better. From testing my coworkers' mouses (older Masters) I'm pretty sure they have each been a step downhill from my perspective.
My sister in law gave me her G700S to fix the main button microswitches, and she convinced me that it's the apotheosis of the design - it's what should have replaced the Performance MX. No soft-touch plastic, extra buttons, and the higher resolution sensor. I'll probably have to get one off eBay.
Edit: also all of the Masters have non-user-replaceable batteries.
But the battery only lasts a day or two. The G604 is almost as nice, but battery lasts weeks. But it will likewise need switch replacements before long and is likewise no longer made. None of Logitech's current mice fill the same niche. Why do they discontinue their most popular mice without replacing them? Who can say. I'm pretty confident a direct 700/604 replacement with better switches would sell well.