I can see how Pachanga would seem "difficult" if you're coming from a pure Salsa/Mambo background. Pachanga seems to fall more into the "Swing" type of dances.
I picked it up pretty quickly because the first time I saw it in a club I thought they were doing some sort of Charleston. When I started following along, I was told, it's only the back half of the Charleston. After following along some more, the dancers stopped me again and explained, that I should stop the "running motion" and instead use the latin side-to-side ribcage motion. These were locals in Spanish Harlem so the actual language was much more colorfulbut they seemed satisfied after I applied the ribcage motion.
To this day, I always think of Pachanga as the latin Charleston![]()
If one is coming from a "pure " mambo background, then , you would have danced pachanga, in all likely-hood