I've been using the Superlight 2 for about 6 months now, works fine and is what you'd expect from Superlight 1 but with a few improvements including usb-c and 4K polling rate.
Although I had to dissasemble it and clean the mousewheel as it accumulated dirt which made the scrollwheel cancer to use and kept scrolling up or down when using.
I ain't one of these god damn enviro weirdo's but u swifties disgust me. That's more co2 in one year than I could create in 852 years. I'm trading in my electric car for a v8.