A game you "didn't know it was bad 'til people told you so"?
I'm talking about games that you still like but you had no idea were criticized so much.
The perfect example for me is Sonic Unleashed.
I admit that the game has its bad things, but I would have never imagined that it was so hated at the time... Although, that could be extended to the entire Sonic franchise, since for many years I was not aware at all of that "Sonic was never good", "Sonic had a rough transition to 3D" nonsense.
Personally the movement mechanics and the tropical overworld were amazing in this game.
While the water jetpack may seem like a gimmick, I thought it really changed the platforming in a good way.
Additionally, I'm a sucker for a good overworld and the amount of things you can unlock or discover in delphino plaza turns it into its own sort of level.
There is definitely some jank and padding (blue coins) in the game, but it holds up better than Mario 64 in my opinion (just due to the camera issues IN Mario 64).
If I remember right, both Legend of Zelda Windwaker and Mario Sunshine were either rushed to an end or released early, leading both to come out unfinished. I the details on why are hazy, but I think they were pushed to try and make up for poor sales of the Gamecube at large or to make up for other gaps in the schedule.
Windwaker had a ton of content cut. The ice island and fire island were both supposed to be full dungeons. Both of those incomplete dungeons later ended up being used in Twilight Princess.