I just started playing rotational with Seasons installed last night so I will get back later with how it works for me but I loved using holidays in my rotation.
In my save there is my main family that I play for 3 days and then I had set up a "Townie Day"-holiday with sims being off from school and work. That day I just logg in and out of the entire town to check up on things, set up relationships, make sure that the new teens that aged up get into clubs and little things like that. It was so so relaxing to have every single sim away from work or school when I started a new household. Before I always had to call sims back from school or work when I rotated into random Townie-household-Nr-35 in order to make sure that the husband and wife had the right jobs since they were living near the science plant and make sure the kiddos had clubs. Just logging in everywhere and all sims are available. It was heaven!!
So this makes me use one holiday every 4:th day just in order to keep my rotational town progressing, it was just such a great system so I like to keep it. We will see what I have left after that for actual holidays but if I have to choose between painless rotation between households or holidays I will go with painless rotation. It was just so much fun just to zip around town and just set things up.
