Logitech MX Master 3S Wireless Performance Mouse

I've been using Logitech as my MOUSE since 1995 when they first started making ergonomic mice, the Mouseman+. White with grey rubber. M-CW47. (White and purple version didn't include the scroll wheel) I went to the MX 500 in 2002, very good mouse. Since then, it's been $100 mice: MX Master, Master 2S and finally this thing called the MX Master S3; so every 4~5 years, I need to replace one of these. My MX 2S still works today, but the main left switch is not very responsive anymore and it's kind of yucky and worn out (I cleaned it for the photo)/ I really wanted and love the near-silent buttons of the MX S3, as I already use Logitech M650 for my notebook, an excellent mouse. The M650 comes in large and "small", which is great for kids. I included a pics showing the Master MX, MX 2S and MS 3S. (The 2S isn't silent, but I guess the "s" is Second version). They all pretty much look and feel the same (not the Red M650). Where the MX 3S is improved over the older models is he placement of the side buttons and scroll wheel. I think they finally got it perfect, without it being the wheel of the MX500 (which rotated forward and back a short distance) The large main buttons are AWESOME! I never cared for the hard-edge sides on the older models. 90's Logitech had buttons covering the whole top, has been missed. The wheel feels good to spin with an all-metal design that should be easier to clean over the older MX models. And of course, the near-silent buttons are very welcomed and sound almost the same as the M650. The problems with the 3S: The bottom thumb button is useless. (see photo) as you really have to bend your thumb to reach it. The MX master, almost any part of the thumb will work. MX S2, is almost as good. But the MX 3S? Nope! It's useless, why even bother? The 3S is slightly smaller but taller than any of the previous models. It's noticeable. I compared the angle and shape of the hump of the M650 is the same as the MX 2S, so maybe that's why the M650 is such a popular mouse. It's easily the best sub $50 mouse on the market. I figure I'd get used to the 3S. It looks great, it sounds great, it appears a lot of thought went into it. But the scroll wheel and/or software is problematic. Worse on my new Windows 11 desktop, but still buggy on my Win 10 notebook. At first, I thought my new PC was the problem, but plugging in the MX 2S showed proper operation. The issues: - When scrolling, like on webpages or Word documents, the page/window tended to move back up a notch. Even if I didn't have to re-adjust, the movement was irritating. This would be about 1 out of 4~5 times. it got OLD. - Zooming with web pages, especially Google Maps = with little control. Usually zoomed down to near street level, but zooming out means seeing the whole country or planet. Switching to notched/divots mode did help a lot, but... what's the point of free wheel? The lack of a free-wheel is one reason the M650 isn't my main mouse, and the lack of thumb rest. If they added those two features and sold it for $50, I'd be golden. I updated Windows (helped) I updated the Logitech software (helped), but the issues never went away. - Clicking on website items: like pull-down menus = strange behaviors. Like unable to make a selection because the mouse would click for me or something. I don't quite remember much anymore. But it made things difficult. And since Logitech gives most mouse pointer speed & scroll control to windows, nothing seem to solve these problems. I had replaced my MX 3S with another one. I must have a bad mouse, right? The new replacement was pretty much just as bad. I updated software again. I used the mouse, to get used to it. But with my MX 2S handy, I grabbed it - so I could get stuff done. Over the course of a few weeks, I forgot I had the 3S. I tried it again... tried it on my Win10 notebook, again. And it was nothing but frustration. The M650, a $25~34 mouse that's BT paired, worked great. Zoom, scroll, mouse movement. MX 3S... not so much. Another problem with the MX series in general, is the USB polling rate of 125Hz. Many of us play games, and as I looked into this, 500~1000Hz USB polling is important. I knew this when I got the 3S, but to me - the silence and good ergonomics was more important than better gaming. Logitech should have options to raise the USB polling as needed. So I packed up the 3S, and dropped it off at UPS and typed up this review. I won't waste my $100 on a product I cannot use. I will need to find a good alternative. My 2017 MX 2s worn out. I'm looking at gaming mice; looks like many of them are $150, some as low as $50. I don't think any of them are "quiet", which is a huge selling point for me. The Razer Basilisk X is $40~55. I don't need or want RGB, got other things already. But no freewheel. :( The no-names for $10~25 don't look like they're worth my time. Even thou one looked good, it turns out to be 20% smaller than a normal mouse. Oh, holding the mouse in the air, and moving will cause the scrolling. So does the 2S, but its just not as bad as the 3S. It'll be 2-3 years before the MX 4S comes out, maybe then?