Wanderers

I recently read through our website with a customer from the US, and he pointed out a few phrases that sounded unusual to him. That made me think more carefully about who our main readers are. I started researching professional copywriting services in USA because most of our visitors are American. I care more about natural wording than where someone physically lives, though. When choosing a copywriter, how important is experience with a specific country or audience compared with general writing skill?

I recently added several new items to my online store and realized their descriptions are all written differently. Some are only two lines, while others are much longer than they need to be. While figuring out how to make the pages more consistent, I found professional product description writing mentioned as one option. I am mostly interested in making the information clear and useful for shoppers. What details should I prepare before asking someone else to write descriptions for a group of products?