In addition to my previous post after more experience with this feature, I come to the conclusion that "Due Today" is mostly useless for users here in Europe.
It's 4 pm local time when the new day starts in Japan. So most of "due today" is in fact "due tomorrow" for me, when I#m studying in the afternoon. So I still have to check every deck, if there is something ready to study. This isn't fun at all.
BTW, a nice feature would be to have an option to switch to the next deck (with due cards) without going to "My decks".
Give me "Due now"!
Regards
Christoph