I think the last time I ate popcorn was years ago. It was from a bag, and it tasted like eating salted nothing.
Salted nothing with butter, usually
Anyway, I rarely make popcorn and never trust the popcorn button, so I can't comment. My friend who worked in a movie theater is somehow really good at making popcorn so it doesn't burn, which is great because burned popcorn is a terrible smell that has a tendency to linger (particularly in a dorm room, which is the last time I ate popcorn).