I know what you mean, Rita. I save my comments for roses that have something different and interesting about them. Otherwise, I'd just be saying: "This is a nice rose. It grows well in my garden. Blah, blah, blah."
I enjoy reading comments that tell me something I wouldn't have known about the plant. For instance, if the plant is sold as a carefree and disease-resistant variety, I want to know if those claims are false.