What ever you want to improve. Try it. I only get one batch offered per day after shopping over 5,000 orders to achieve recognition in Gold Tier anyway. Somehow I like to read feedback from my customers to feel good about myself. I don't pay attention much about 5 stars. I also believed that customer wouldn't rewrite compliments again every time. So if I shopped for recurring customers, he/she would assume they already gave me a good credit sometime before ... no need to say it over.