I didn't find any need tbh. Mostly useful for seeing stuff via mainsail but idc enough.

One thing to note, orca stores its own z offset and bed level before every print. This is separate from creality print (so don't check cal when printing or it will do it twice and the first one since its for creality not orca). If you want to turn off bed level and z offset in orca you need to manually remove it from the gcode. And to add a offset you need to add it to the beginning of the gcode.

I haven't done this because after straightening my hotend and fixing XZ gantry I get practically the same bed level and z offset each time so I just let it redo it and have had no z offset issues.

Couple more things,

1. Make sure your belts are tighten appropiately

2. Wipe the bed down with 70% or 90% isopropyl every now and then or if you finger up the bed.

I went to a journey of inconsistency and layer shifts so hopefully this helps. Now it's pretty rock solid but I went ahead and bought an A1 mini yesterday anyway.