As with all forms of media, there is no true answer to this question. Quality is subjective to the consumer and therefore, while it might be that I hold grunge to an esteemed position within my heart (except for Pearl Jam), it might be that someone else would listen to it and feel nothing but disgust and disdain (hello Mother).
It is, quite frankly, completely silly to ask after the quality of an entire genre of work, as well. There are good grunge artists (such as Soundgarden and Nirvana) just as there are terrible grunge artists (like Pearl Jam). And even then, the quality of their albums may differ, such as how Nirvana’s Bleach sounds like a drippy fart in a kindergarten class (except “Love Buzz” and “About A Girl”, I love those songs), or how Pearl Jam somehow stumbled across decent songwriting with about half of Ten. And that parenthetical statement in the previous sentence is evidence as well that a bad muffin can still have some tasty blueberries within.
Normally, I might spend more time delving into theoretical discussion, but I feel that the shared name of our articles is a dull-witted question asked only by those without enough critical thought to understand that for each person on this planet, there is an entire world, and in some of those worlds, grunge may be good, and in others, grunge may be bad. Still to others, grunge may have never entered their vocabulary.
And to your assertation that “to have much feeling for Cornell, who also fronted the groups Temple of the Dog and Audioslave, it would appear that you had to have lived in a certain era at a certain age,” I would like to point out that Chris Cornell had a solo career that, while never incredibly popular, still flourished, and that younger people are still being introduced to his work, and appreciating it, even today. Grunge is a product of the 90’s, there’s no doubt about that (well, except for all the bands and albums formed and released in the late 80’s, but I guess we’ll pretend those don’t exist), but it is not a product trapped in the 90’s. It still resonates with people today the same way it did back when you were listening to it.
Personally, grunge was my gateway to the larger music scene as a whole, with Nirvana’s Nevermind being the first album I ever bought. It’s not my favorite musical genre, nor does it house all of my favorite bands (Nirvana is still my favorite band, but most others are post-grunge or 60’s/70’s rock), but it is still a good genre to me.
And while I realize that you did not make any definitive, “objective” statements on the matter in your article (which actually further destroys the purpose of your title), the title still implies that there could be answer. There is not. If anybody wishes to find an answer to the question “Was Grunge Good?”, I would strongly recommend going and listening to some grunge yourself to find out what your answer is.
But not Pearl Jam, they suck.