Good is relative. Finnegan’s Wake is a masterpiece, and it’s also deliberately obscure to the point you either need an education matching Joyce’s or a reading companion.

Is that good?

Is it bad if it is not approachable? Is it good if it is?

Red Storm Rising is one of the best modern military fictions according to a lot of fans of the genre, but that’s doesn’t mean you have to like it. I’ve got some straight up gunporn series I read when I’m in a mood for reading about automatic shotguns firing explosive shells into vampires, but I wouldn’t call them good at anything but that and objectifying women.