Well, For All Seasons is sometimes considered a classic......for some reason (yeah, it's pretty decent, or even good, but that's no classic).
Some people would say "What's so Funny About Truth, Justice, and the American Way".....but I would disagree with them quite strongly.
Other than that....not sure.
Overall, it wasn't always "that bad" (but it did went on for about 30 years, so it would have been alarming otherwise), but Pre Flashpoint Post Crisis Superman did have a pretty hard time on the end, from crying in a corner because Batman told him "
the last time you inspired anyone was when you died", to a more than a year long story arc where he loses his dad, sees his adoptive son trapped into the Phantom Zone and witnesses the genocide of the entire remains of his people while two of his worst ennemies were celebrated as heroes for being the orchestrator of this very genocide, all without having been able to make a single difference in any positive way. And then, "Grounded" turned him into a self righteous d.ck, lecturing people in the most condescending ways while making idiotic decisions, to the point that people were starting to wonder if it was supposed to be a plot point of some sort. Spoilers: it wasn't.
So yeah, by the end of it, he was an impotent wreck that accumulated failures, making you wonder why every one acted like he was Earth's Greatest Hero.