Here is what some of them had to say.

I remember the first time we heard “Nevermind” at the Rocket. Designer Dennis White comes waltzing in. He had this cassette. He said, ‘I’ve got Soundgarden’s new record.’ ” “Nevermind” and “Badmotorfinger” were both supposed to be released at the same time. We said, “Let’s listen to ‘Badmotorfinger.’ ” We said, “That’s a great record.” Then somebody flipped the tape over. “That’s really ... good. That’s Nirvana? Play that again.” We played the tape about 30 or 40 times, all day.

It was one of those breathtaking moments, an epiphany, the skies parted. Kurt was able to reach inside himself and grab those universal ideas and express them in such an emotive way it just gotcha! Pop just doesn’t get better than that.

— Art Chantry, graphic designer of the Rocket magazine, and who made many of the early grunge-rock posters, which were featured in a one-man show at the Seattle Art Museum

He's got it right. 

Nevermind was one of the few albums when the first time I played it I immediately wanted to hear it again. It was so raw, so emotional, so visceral, and such a good opposite to the processed pop of the 1980s.