Logitech MX Ergo S Plus Advanced Wireless Trackball Mouse, USB-C Rechargeable Wireless Ergonomic Mouse With Bluetooth and Encrypted Dongle, 6 Programmable Buttons, for PC/Mac, Black

I got my first MX Ergo in 2020, and recently bought a second one (first one still works) to keep at the office while my original stays at my home office so I no longer bring the one back and forth each day. I also wanted to upgrade to USB-C. I'm happy to say that the MX Ergo S works just as flawlessly as the OG. It's the most comfortably daily driver I've ever used, and I was once the biggest antagonist of roller-ball mice. I have comically large hands (just over 4inch wide palms, 8.5inches tip of middle finger to bottom of palm before wrist) so fitting a mouse is hard work. This one isn't too big, for normal hands, and for me it's actually comfortable in that it doesn't force me to curve my hand around unnaturally; the included wedge is perfect for compensating for the extra width of my palm. The roller-ball is also incredibly smooth; you may need to pop it out and clean it once a month or so depending on your personal environment but this is quick. I just pop it out and grab a cotton swab, about 2 minutes total time. The battery also lasts so long I actually haven't paid attention to it so I can't give a good estimate. I use it everyday for 6-10 hours, and I charge it maybe 2-3x a quarter at most? The last thing I'll mention is that despite its size, this is the perfect travel mouse! Sure it's slightly large, but the benefit is you can just rest it on your tray table or lap while using it since the roller-ball does all of the work!

Good mouse, a bit bulky and the bottom part becomes disadhered a little too easily. I have big hands and find this bulky, it must seem huge to people with normal hands. Also I wish I could use the mouse without the bottom adapter.