Nice add-on, but... Rated 3 out of 5 stars
It takes a lot of status bar space. Although we can read details hovering this place, this add-on uses text instead of small icon that can change its color depending on regular days/holidays.
Such huge space that it occupies is unacceptable. I was forced to disable it only by this reason. I'll give 5 stars as soon as this issue will be solved, currently it is showstopper