I and my wife used an LLM to translate something she had written, she could have done that herself but she doesn't feel up to a task like that yet (due to the target audience). And I myself am far away from being able to translate that kind of text to my native language.
In general the translation was good, but the wording felt a bit unnatural, and to my surprise it got some basic grammar wrong - specifically, using the wrong grammatical gender for some nouns (sometimes there are valid variants, but not in the cases I'm referring to), and also using pronouns where a native never would - where it's too hard to immediately see what the pronoun refers to. In the end I had to massage the output a lot before it was acceptable, and we spent hours before the output was acceptable (changing the input to try to coerce a better translation, and after that refreshing the translation manually to fix grammar errors, wording, and as mentioned, overuse of pronouns).
In general the translation was good, but the wording felt a bit unnatural, and to my surprise it got some basic grammar wrong - specifically, using the wrong grammatical gender for some nouns (sometimes there are valid variants, but not in the cases I'm referring to), and also using pronouns where a native never would - where it's too hard to immediately see what the pronoun refers to. In the end I had to massage the output a lot before it was acceptable, and we spent hours before the output was acceptable (changing the input to try to coerce a better translation, and after that refreshing the translation manually to fix grammar errors, wording, and as mentioned, overuse of pronouns).