I love it. I had problems with my hand two years back (pain in wrist, tingling in palm and ends of fingers). After I started to use it it went away. I switched to normal mouse (ROG Pugio) and pain came back. I thought it will take ages to get used to it but it felt natural after first 30 minutes. Now I'm trying to finally finish my Scylla handwire build to try ergo split keeb and hopefully ease my left hand too.

Has saved my wrists in the long run!

I really like it; it works really well. I had an MX Master 2 and 3 and I like those, but this is much better on my wrist for pain. I use an Autohotkey script to reproduce the tilt scroll that the MX Vertical lacks: I hold down the shift key and then scroll up and down -- this allows me scroll left and right.

+WheelDown::Send {WheelRight}{WheelRight} ; Shift + Wheel makes the wheel on the mouse horizontal

+WheelUp::Send {WheelLeft}{WheelLeft} ; Shift + Wheel makes the wheel on the mouse horizontal