I'm not a professional. I noticed a small repetition on a word or two and maybe a small block here and there. Based on what I hear, I'd say you are mild for sure. Honestly if I didn't stutter I probably wouldn't pick up on anything. Even fluent people have hesitations and repetitions at times. Are you saying exactly what you want to say? If so, I wouldn't worry too much :) It's when you start avoiding there is an issue...