My first motivation to try out Suno, was that since I'm programming drums and laying OK keys, maybe Suno will do better? And, yes, sure did. I still record everything else, and I'm the "driver" when it comes to the creative direction.
But, still, you only get so much freedom. Best approach has been to record some idea of a track, feed it to Suno, and hope that it'll come up with something close (but better) than what you can. I feel zero musical accomplishment from generating the tracks, but the end result sounds better than the tedious job of programming instruments yourself. So, not much different than pulling tracks from a sample pack.
From a one-man band perspective, it works well. But of course there are many concerns, both ethically and otherwise.
With that said, I've listened to a lot of purely Suno made music generations, and it all sounds extremely polished and extremely average. Average in the sense that it sounds like the average of the music it has been trained on. My first prediction was that modern country would be the first victim of this, fact being that for the past 10 years modern country has sounded like mindless AI slop, but made by humans.