The common experience of using an AI tool for business writing is that the output is competent and bland. It reads like anyone, addresses nobody in particular, and needs so much editing that the time saved is arguable. The usual conclusion is that the tool is not very good at this. More often, the tool was asked to write about a business it knows nothing about, and it did the only thing available, which is to produce the average of everything.
Nearly all of the improvement comes from context that feels too obvious to type. What the business does, precisely - not construction but replacing flat roofs on commercial buildings. Who the reader is, and what they already know. What the reader is deciding. How you talk to customers, whether the tone is formal or direct, and which words your trade uses for things. These take a paragraph, and they change the output more than any rephrasing of the request.
The strongest single addition is an example. Give it two of your own pieces - a quote follow-up that worked, a description you were happy with - and ask it to match that voice, and the result stops sounding generic almost immediately. It is far easier for a tool to imitate a concrete sample than to satisfy an abstract instruction like professional but friendly, which means almost nothing and is interpreted differently every time.
It is worth writing this context once rather than retyping it. A short document holding what the business does, the services in the words you use for them, the kind of customer, the tone, and a handful of examples becomes something you paste at the start of any session. The same document is what to hand a new employee or a freelancer, so the effort is not spent solely on the tool, and it tends to sharpen the business's own description of itself as a side effect.
One limit is worth keeping in view. Context improves how well the output fits your business; it does not make claims about your business true. If the tool is told you offer a guarantee, it will write about the guarantee with total confidence, whether or not you offer one. Everything factual - what is included, how long it takes, what it costs, what you promise - still needs to be checked by the person who knows, because the tool is repeating your description, and it cannot tell the difference between a description that is accurate and one that was aspirational when you wrote it.