I am a QR panel evangelist. 
For me, they are, by far, the #1 game-changing improvement of v3 over v1.
See my two posts in this thread for my typical Scrivener layout, which assumes and is dependent on QR panels. Particularly, my second post in that thread links to posts with more screenshots.
Even if you decide they’re not for you, they will hopefully give you ideas about the possibilities that QR panels provide.
Best,
Jim