Have 1 Big Object or Multiple Smaller Objects

In Unity what’s the best choice? Is it easier to work on having 1 large complex object (made in Blender) with multiple sub-objects (children) or
to break the model apart (say by panels) and bring them in one by one.

For instance, 1 large case containing multiple panels or
1 Case
Panel 1 with switches, gauges, dials etc
Panel 2 with switches, gauges, dials etc
Panel 3 with switches, gauges, dials etc
etc.

or
1 Case
Panel 1
Switch1
Switch2
Guage1
Guage2
Guage1_Needle
Guage2_Needle

I’m just starting out and I get the feeling that the way I’m currently working, I’m setting myself up for failure.

Any assistance would be appreciated.

Thanks

Hello @radhat2009

This may help you

@SaurabhStudio
This is the answer I was looking for, for anyone that comes after.

Basically, import piece by piece (the reason is polygon count) you want to keep it low.

However, Saura gets the reward (if I had any to give) as it was the only answer submitted.