YES - absolutely. I think the personal and societal benefits to health and well being stand out. Less so perhaps if you're younger with lesser responsibilities to families and elder care.

I've tried other arrangements - longer hrs/day in return for 1 day off every 2 weeks. Worked well and the benefits are such that at this stage 80% of salary for fewer hours would be a good arrangement.

The real danger is the unstated but practical assumption that you're on the book for fewer hours and lower pay but in real life expected to continue to do 50, 60, more hours week because of culture and events.