A lot of hyperbole around the XIII trilogy but don't be afraid to try it- especially since you already have it. Flawed games for sure but anyone claiming they are objectively bad games typically can't back it up and usually start claiming things that other FF games are guilty of IE, "bad at explaining lore", "hallway simulator", "it's not turn based!!!". Etc. They aren't great games, but they are good games and whether you like them or not will come down to personal taste on the combat system and whether you like the characters or not.