Logitech MX Master, I noticed wrist pain with the prolong use of the trackpad on my Mac. Instead of getting a generic mouse, I decided to take the leap and get the MX Master 2S.
The ergonomics alone is worth all the hype and money. The extra buttons, excellent tracking is cherry on the top for me.
I really like the 2s. Besides just being an all-around excellent mouse, the scroll-wheel that just spins forever is probably my favorite feature - sometimes to scroll a long page - sometimes just as sort of a fidget spinner.
I want the 3 for the USB-C but otherwise my 2s is still in excellent condition and I have a hard time justifying replacing it just for the USB port.
I have the MX Master 2S as well. Recently my keyboard started getting flaky on me and I got the MX keys to go along with it and it is fabulous. I switch in between machines fairly often and the buttons to switch between computers are a life saver.