The workflow with Encore is whatever you are comfortable with.
I generally do all my editing in Premiere Pro – export m2v and wav – import those into Encore, make chapters. Then make the menus.
Or if I am doing another issue in the same series, I first import all the menus from an earlier project, make my changes in Photoshop, make sure all the buttons and navigation and remote control buttons are to my liking, then import and link up the video.
Lots of testing, which despite a few bugs, is pretty easy.
Can’t complain really.
List your complaints, chances are the others on this board will come up with a solution for you.
Star Wars type DVDs with random menus and hidden easter eggs use something more advanced than most of us need.
Good Luck
Mike