@ProfessorRadcliffeEmerson I have definitely experienced that 'not coordinated enough for this class' feeling, when I tried Dance Fit and Step! Now you mention it, I was often a bit lost in the yoga flow bits of Balance too.
Pump I can just about manage, it's usually the same move repeatedly, but with timing variations.
I think the reason I get away with it in BodyCombat is because I know all the moves from training in the past, and there's a lot of repetition and reuse (and they nicked a lot of basic combinations from martial arts/boxing/boxercise). Pilates (beginners/mixed) is nice and slow, and I rarely feel lost.
Circuits/Bootcamp and Boxercise are better because there's no choreography to speak of, and you can work at your own pace.
I did get asked to tone down the combinations with my boxercise class actually - I got a bit keen with the add-ons and they were spending more time trying to remember what to do than punching! So I gave them a night of really short combinations, and had them all huffing and sweating cobs. Turns out they missed all those little rests when they lost the place lol.