The cultivation concept definitely has it's appeal, the worst thing about cultivation worlds is the personality tropes of the people in the world rather than the power system itself. I have seen a few western-written cultivation words that do things FAR better than the Chinese because they escape from all those tropes and manage to successfully re-imagine the social structure of the world.
The most appealing thing about cultivation worlds actually IS the fact that so many things are just SO much stronger than the MC, but there is also the promise of the MC someday gaining the ability to overcome those foes. However, the time-line toward clearing that hurdle is often very long and painful. It's not just a few hours of grinding against weaker enemies like in liteRPG power systems.
The down-sides of the Chinese written versions is just how samy and predictable they are, and how shallow the writing is.
You always have a social structure that, close to the bottom of the power scale, seems so well designed to protect new cultivators that you need to come up with some pretty contrived ways to actually expose them to danger and create dramatic tension. Then, at the higher ends of the power scale, there's just so much of a cut-throat attitude that it makes zero logical sense. You would think people who are effectively immortal would value their lives more, but they are so quick to kill, which promotes a kill-or-be-killed culture.
Anyone with THAT kind of wisdom of years would have long since learned that showing mercy is the best way to keep YOURSELF from harm because it promotes a culture where you don't have to fear an assassin in every shadow. It's not an absolute protection, but it allows you to make allies. And having a large enough number of allies means that you have protection if anyone actually DOES come after you. Your alliance will just come down on the poor fool like a cascade. This will keep the undesirables in line, and thus increase the culture of security.
That's the thing rulers IN THE REAL WORLD figured out a long time ago.
(This, BTW, is also why the ancient world actually found the Jews to be the single most terrifying thing in that part of the world. Most normal people played by these rules, the Jews were the type of people to break the rules in places like Jerico where they kill every man, woman, child, and animal. If you are facing most other forces, you can expect to have a surrender accepted or defeat only means your soldiers are killed. The Jews would go on to kill everyone though. To a lesser degree, it's like how everyone fears ISIS now days. But, using this old testament Jews for the example should show how this culture of violence can't last. Over the generations, the Jews went from the most terrifying bunch of death-loving psychos to one of the most peaceful and enlightened intelligent religious groups out there.)
Another problem with the violence in cultivation novels is that it's all thematically based on enlightenment. Enlightenment normally means becoming more peaceful. So, why is it that cultivators always somehow become the most violent people in the world?