At first I was like "This show is stupid. I'm not wasting a good 25 min of my life for this dumb show". Oh man I was wrong. I went on a trip to South Korea to attend a cosplay contest and I had no idea KHR was so popular at Korea. I watched a episode the following night and I was hooked.
So yeah. Don't judge an anime by it's cover.
The art wasn't the best at first but you know, character development? I loved the character design though.
I'm giving KHR a 10 because it was the first anime I actually enjoyed till the very end. Though it's filler episodes were kinda irritating, I still laughed like a duck!