I've been using the streaming service for years, and admit I sometimes get overwhelmed by the choices. I've also found that after doing Essentrics and learning the techniques from the various instructors, I can now use the CS episodes with less frustration
I would suggest starting with the "Main Objectives" categories, and just pick something that you want or need that day. Toning? Stretch? Cardio? Standing? Floor? There's plenty of overlap, and you can do the strength workouts a little looser, if needed. All the instructors have good form pointers and it seems I learn something new with each workout.
I know we don't want to waste time trying something we might not like, but with so much content, you just have to jump in. I'm trying to introduce a friend to the program and this is what I'll probably tell her. It might take a few tries to find what you prefer.