[Klathmon]

As long as sourcemaps are setup correctly it's not bad at all.

That being said, setting up sourcemaps correctly can be a bear... But it's taken most of the pain away from our debugging issues.

And if that's not possible, as long as you aren't using some of the "heavy to transpile" features like async/await, looking at the translated code directly (and stepping through it) is generally close enough to get the gist of what's going on.

Edit: the bigger headache for me is code which loses it's full stack-trace, which is becoming more and more common when transpiling async/await for reasons I haven't had time to look into.