Do you use 3D arrays for repeated features, or create each one separately?

[indiancad]

When modelling parts with repeated holes, slots, or other features, creating each one manually can take extra time and make later changes difficult.

A 3D array can help maintain consistent spacing and alignment, especially when the number of features may change during design.

However, for irregular layouts, placing features individually may offer more control.

How do you handle repeated features in your 3D models? Do you prefer arrays or manual placement, and why?