I like to get grades, and if they are not 10s, then feedback. I was really annoyed when I did a buffet integrity check and received a 10, did the same job 6 months later and got a 9 with no feedback. I really do want to know what needed to be fixed, and while I should be pleased with a 9, it was useless to me and only made me say to myself that I was not going through all that trouble again (with crappy food) to get a 9. I know I am too much of a perfectionist, but that's just who I am.