As long as you avoid the left/western rapid positions CM4/GRBL1.1 I'm certain is in a very usable state... Carbide would not have released it otherwise for the masses.
As a software and electrical designer, I understand the double-edged sword nature of more adjustability vs. simplification with fewer adjustments. Like you @slukas, I always strive to make everything adjustable while at the same time make things almost brainless, or what I like to describe as "buy and fly".
I've had a number of head-scratching "missing feature" moments using the CM/CC suite which I've documented in the software suggestion thread that would really improve the workflow and UX, but I digress.
The more users running CM4/GRBL1.1 the better.
I'm in no hurry to upgrade.