These tools, like any tool of the type, bring your code to the 90th percentile. This is good for nine out of ten people, because it improves their code. It's also good for the tenth person, when he has to read the code of the other nine.
If you're the tenth person, and you work alone, or with other fastidious people, you won't like the formatter. That's fine, you don't need to use it.
If you're the tenth person, and you work alone, or with other fastidious people, you won't like the formatter. That's fine, you don't need to use it.