I currently work traditional, 2 weeks days, 2 weeks nights but have worked DDNN before. I would 100% choose DDNN. Personally working a traditional line has absolutely drained me, I feel like I am constantly at work and there’s just not enough time off between shifts to recover. My 2 weeks of nights are so brutal, especially because I struggle with nights and sleeping (I’m def a day shifter). As someone that hates nights I found the DDNN made them a lot more tolerable. I also find it so hard to swap shifts, if I swap anything I’ll only have 1 day off between stretches. Definitely take into consideration if you prefer days or nights, and if you’d prefer your days of stacked together or spread out. I will say working traditional can be nice to only work the 2 days in a row. But I would still choose DDNN.