Well, looked at the very specific individual level, it's a fools game. You can't know for sure.
But if you want to take a more rigorous look at the question, where you can come to some justified conclusion about the ODDS of someone hearing pleasing sound from a loudspeaker, then you can look to the research often cited by Floyd Toole as which scientifically helped determine which characteristics in speakers most listeners tended to prefer.
And then you'd be able to winnow down a selection of speakers that measure in the ways that predicted most people would like it. For instance Revel Salon 2 speakers would meet that criteria.