Can second it, its properly effortless and becomes second nature. Gives much more control over the engine.

That being said, switched my old BMW 3 series (E46) with manual to newer 5 series with automatic steptronic transmission, and especially for longer drives, the cognitive and 'manual' load is measurably less. But you don't realize it until you migrate.

It moves to almost boring territory, luckily I am not a type of person who tends to fall asleep behind the wheel (unlike my wife).

It becomes second nature, but most people find it a bit of a challenge to learn - obviously not a particularly huge or impossible one considering how common it is for people to get the hang of it in tens of hours, but still a challenge compared to just learning to drive in an automatic.