The only rating that is truly mediocre is the story; for obvious reasons, I give Mahou Shoujo Sonico Magica a 5 in that category.
In all other aspects, this parody opening excels. The production was really clever, cute, and on-point. The art was very well-done, and the characters were very well-drawn. The Madoka Magica opening being one of tne of the better anime songs, the sound was obviously great. In some weird twist, I actually enjoyed watching this 1:30 opening more than I did the actual series. At least this didn't waste 12 episodes worth of my time only to be some half-assed Matrix piece of crap.