Admittedly, I haven't tried that hard with Reiko Sawamura. She appears in some lesbian material and I imagine that's not her forté. Trying in my context is collecting a lot of one type of material and having her appear in some it. Pretty passive.
I would not go out of my way to find material where she shines because I straight up don't care for her look personally.
But now I'm kind of interested. If there's a consensus on her magnum opus I might be tempted to watch it and see what the fuss is all about.