I have a Kobo Glo, which I can use fine when I have a migraine. The only problem is when I try to read in the dark. Even at 1% it's way too bright. Installed the nightmode hack, which helps a lot, though a little less brightness would still be nice
Even so, I am wondering if it would be worth updating to the aura, because I read the light can go a lot less bright. Can't decide if I want to dash out €100 for it though, as my Glo is okay with the nightmode.