When it comes to Grunge I won't throw the baby out with the bath water because there was some of it that I did like, and I get and can relate to all of the reasons spelled out by @Colonels_Wear_Blue
as to how it was a response to the music of the 80's age of excess, and in some ways also a call back to the hard rock of the 70's that I did very much dig, ...and at the time hair metal especially was really beginning to bore me, and this is coming from someone who was a huge Judas Priest, Accept, Black Sabbath, Iron Maiden, Queenryche, Dio fanatic.
The 80's MTV era did introduce me to a lot of British new wave and alternative stuff like The Cure, The Smiths, Depeche Mode etc... that I really did enjoy, and some I still do. I even like The Cure more now than I did then because it has stood the test of time, and their brilliance is even more evident to me now than before.
I initially liked the Smashing Pumpkins with their debut Gish which still sounds great, but I never really categorized them as Grunge, and their later efforts started grating on my nerves because I thought that Billy was becoming self indulgent and his psycho depressive side was becoming more and more apparent. In a way they to me were like the bridge from Metal to Grunge, but neither of the two.
I typically am fine with Alice in Chains but only when I'm cleaning my razor blades. I've a ton of respect for Chris Cornell and Soundgarden as he was truly a phenomenal singer. Nirvana rocked. I dug a little bit of Stone Temple Pilots. Pearl Jam got on my nerves, and bored me to tears.
There was so much other stuff during that era, or near the end of it that was huge as well that didn't comfortably fall into Grunge where some of it worked for me while some of it felt too trendy...
Jane's Addiction launched an interesting artistic direction, and The Offspring was sorta fun, Limp Bizkit and Lincoln Park had some bright spots, but I couldn't take all of it. Red Hot Chili Peppers made a statement, but they were never big favorites of mine. NIN caught my attention, but no way could I stomach a steady diet of them. Korn were definitely innovative, as well as 311 and Sublime, but while I sampled a lot of it, I could never really join the cult.
In truth during this Grunge alternative period, I was seeking out alternatives to alternative, and was attracted more to stuff like The Verve, The Stone Roses, Primal Scream, Travis, Keane, Oasis, Sigur Ros, Love Spit Love, and some other cool British offerings as well as indie club stuff like Luna, Mercury Rev, Cop Shoot Cop, Urge Overkill, The Jesus Lizard, Jeff Buckley, Low, or Alternative Country like Wilco, Son Volt, and Whiskeytown. Grunge definitely took a back seat to me when it came to these other bands of the day.
Grunge undeniably had its place, and altered the music scene in a big way, and while I could handle some of it, it was never my first choice.