I honestly gave up on the comfort light.
It should be subtle, instead is more like the kobo is saying "hey, have you noticed you are using my amazing orange light? Never mind that boring book and take a nap!
"
And when I'm reading, i don't want the device I'm reading on to give me sleepiness.
The regular light being a bit darker towards the buttons side doesn't bother as it "dissipates" from attention once you are reading.
Also i don't know if they may correct this in the future but all the fonts seem a bit gray.
When i used the Glo, the text was really black and made a nice contrast (even though very rough as hd was not a thing back then).
Sorry for the rant.
By the way, the libra is giving me 35h of reading time over 2 weeks on a charge. Not great, but i think it's the light killing the battery a bit too fast