I tried a couple of the flashy Chinese junk left handed vertical mice and they were all really really light weight with stiff buttons, so every time I clicked it turned into a click-drag (the force of the click moved the mouse). Is that one different?

I've been using a left handed Evoluent but they never released the latest generation wireless left handed, and the price for the old version is 3x as expensive as it was a couple years ago (and they don't last very long, having owned a couple I get double/triple clicks within a year of buying it). I do like the separate middle mouse button though.

All the non-wheel buttons are easy and comfortable to click and work consistently, I have no issues with them. The mouse wheel could be a bit better (it’s ratcheted, which I prefer, not free-wheeling), but is good enough for me. I generally don’t use the middle mouse button.

The gliding skates aren’t too great, I replaced them with aftermarket ones.

The RGB lights can be turned off permanently by long press on the DPI button.