Right off the bat, I can offer two things you will find extremely useful:
1) Professionalism
I am professional, sincerely engaging you as a client and treating you with the respect you deserve; this translates into how I prepare my articles. Allowing me the opportunity to work with you would be allowing me to cater to your needs as a client. My writing is legitimate, entertaining and well-researched. Let me stress that I will research, research and research to ensure that the end reader is able to understand what I write while maintaining a strong grip on all the facts. I will spend time to learn more about the topic you (or your team) assigns me so that I can provide you, my client, the best that you deserve.
2) Honesty
I am honest and straightforward. I do not make use of article spinning software and I certainly do not believe in plagiarism. While I may draw inspiration from others, I will certainly maintain a clear, ethical approach to my writing - this is something I believe my clients deserve for their money. I believe this is especially important considering that you wish for unbiased brand descriptions. Now, while my actual mother tongue language is not English, the unique education system of my country has ensured that I am as much of a native English speaker as most other people throughout the world. In fact, English is my preferred speaking and writing medium of communication.
I have samples of similar work (descriptions/list articles) that I can showcase.