I work 3×12, and I've been taking 1 day off a week this year and it's been amazing, from a mix of annual vacation and calling in sick. Almost the good life, almost like being retired. I'm barely ever at work.
Obviously, the trade-off is that you can never take an in a row vacation longer than 5 days because you run out of days off. So no going to Cuba for a week or two.
But I wonder why more people don't do this, or at least I've never heard of anyone doing it. Losing the extended break hasn't been noticeable, because 5 days off a week, I haven't had any time to get burnt out.
I've even been thinking about getting a second job and doing the same, to save up some cash for 2-5 years. Right now I do Fri-Sun, so I'd just need a job that's Mon-Thursd, and take Thursday + Fridays off, or Sundays + Mondays, and only work 5 days a week. Doing “2” jobs but working as much as many doing 1.