I've been using it since I got it. It's been working great with one small issue that I haven't been able to solve. For some reason when I use plasma on Arch linux (but not ubuntu), the display outputs garbage. I'm guessing it's not detecting the EDID correctly and setting a weird resolution or refresh rate. It's not a major issue since other desktop work well so I haven't spent much time looking into it.
Ever since I started using Wayland I’ve had this problem, even when I’m not using KVMs. I have to do a power reset of my monitor to get it to negotiate the correct resolution and refresh rate. Meanwhile Windows and macOS use the monitor without issue. I suspect the issue isn’t solely with the KVM.
I get that too on a machine running Mint Cinnamon. It also happens from the BIOS screen, so I don't think its a Linux issue. A re-plug fixes it, but that's not great for a remote access device.