I agree, memory and muscle memories are hard to adapt after a long time (20+ years) using a software, and my memory is for sure still too tied to the Adobe way.
It is not a matter of missing features, but rather the accuracy of the tools or of the UI. Basic example: the cursor sometimes doesn't change when the modificator keys are pressed. Or with Photo I experienced bad antialiasing cutting some parts. I don't use Designer often, so I cannot comment it.