I just received my colorhug2 and calibrated my monitor and I'm very happy with it.

[gwju...@xtra.co.nz]

I'm running Linux Mint on an old Mac Mini and the Live USB wouldn't boot up. I suspect my hardware might be too old. So I installed Argyll CMS and DisplayCal and everything went really well (after I installed the Colorhug client files). At first it looked like it was going to be too red like others mentioned but when it was finished it looked really good. I'm seeing a lot more detail now than before. Very happy.