Is there any plus side (besides no code) of workflow vs suitescript

It is more transparent. When scripting, you sometimes don't know what and why something is happening.

Locking records for editing is also easier via workflow

I would 100% disagree that it’s more transparent. With scripts I can log exactly what I need to see. Debugging Workflows is a nightmare, they are like a black box.

Well, at least they always track the current state. For the script, there could be no logs, if it was written by someone else. Though I personally prefer scripts too, they are more powerful.

There is a lengthy discussion between Matt Dahse and Eric Grubaugh about this topic here^