View attachment run tests.mp3
I made a test with Samplemodeling Strings + 8dio Agitato, then Agitato alone, then SM alone, and finally BBCSO. They probably take more work than CSS and don't sound as good. I own several other string libraries that can't pull it off.
That said, this is the sort of run that's easier to do than something like Hedwig's Theme with continuous runs all over the place, I think most can't compete with CSS on that front unless you start layering articulations and going a bit nuts.