Translation is one of the places where the current tools are strongest. A quote, a product description or a reply to a foreign enquiry comes back reading naturally, in seconds, at a quality that would have required a person a few years ago. For a small business selling beyond its own language, this removes a real barrier, and the sensible response is to use it.
The care needed is about which documents, not whether. The tools produce text that is fluent before it is correct, and fluency is exactly the signal a reader uses to judge quality in a language they do not speak. A translation containing a serious error does not look like an error; it looks like a paragraph. If you cannot read the output, you cannot tell a good translation from a confident wrong one, and the usual instinct - it reads well, so it is probably fine - is measuring the wrong property.
For everyday material this matters little. A description, a set of instructions, a friendly reply: if something is slightly off, the reader understands anyway and the cost is small. The risk concentrates in a narrow band of documents where a single word carries consequence - anything stating a price, a deadline, a guarantee, a liability or a legal obligation. Terms of business, contracts, warranty wording and safety instructions belong to a person who can be accountable for the result, and that remains true however good the draft is.
There is a practical middle path that gets most of the value. Use the tool to produce the draft, then have it translated back into your own language by a different tool or a fresh session, and read that. A back-translation does not prove correctness, but it reliably surfaces the large failures - the negation that flipped, the number that moved, the clause that softened into something you did not mean. It costs a minute and catches the errors that would have been expensive.
The other half of the job is context, because the common failures are not grammatical. Names of products, trade terms and the word for your particular service often have a specific accepted form in the target market that a general tool will not choose. Telling the tool what the business does, who the reader is and how formal the relationship should be changes the output more than any other single thing - and for a market you intend to keep selling into, paying a native speaker once to correct the core pages is an investment that keeps paying, because everything afterwards can be modelled on text you know is right.