Wheel of Time is my go to example of bad fantasy literature. But there is someone disagreeing in here. Maybe it's just sunk cost bias. But anyhow it goes to show how tastes vary.
To each their own. It's often brought up in discussions as people's favorite fantasy series, or an example of a good series. I don't fault anyone for thinking the former, but I think the latter requires a bit of justification if not presented in purely subjective manner.