Longform

Pros

• Your Act/Chapter/Scene division is absolutely perfect for the Longform plugin. I highly recommend it; you get one-click compilation of your text into a manuscript, as well as chapter/scene reordering.
• I go with the simple approach: Longform & one folder for the scenes. One folder for background information and other bits I might need as reference to at some point.
• Longform is great for compiling but I don’t know if it can export to epub.
• Did you try Longform? It's a really good plugin for novel writing!
• Longform and Better Word Count are indispensable to me as a writer. ... Longform makes it easy to combine them into a single document when I'm done.

Cons

• I've also tried longform, but I didn't like how restrictive it was with my file organization.
• I know many uses Longform. I don’t though.
• I’ve heard people recommend Longform, but I could never figure out how it worked. I am unfortunately not known for my technical prowess. I am on mobile though so that might be part of the reason why I could never wrap my head around it.