I'm working in writing company and usually, our clients are students who order some college papers for example like this https://familyessay.org/research-papers/ but I also know that often site owners ask us for writing help for their products. I'm sure that it has own place because not everyone can write well about something. But if you think that you are an expert in your niche and you know your product and audience well you should write it yourself because it is the best way for your business.

Yeah, I fully agree. It's awesome