Magia Record: Puella Magi Madoka Magica Side Story isn't a good anime, in my opinion. It's even worse as a "Madoka Magica"-anime.
The main problem is the abnormal amount of characters, some without importance. And when this is used badly, well, the audience tends not to care about them. And that was my case.
The other problem in this anime is the amount of events. Some of them are not that important nor entirely explain. I just... don't get it. Some problems just disappear in the same episode.
Now, the characters. The protagonist is quit interesting, but some aspects are forgotten. For example, the main character's parents just vanish. During the entirely anime, we don't know a thing about them, or even if they know something about the main character's mysterious sister.
I have nothing to say about the animation. It's just not that important to me.
About the soundtrack. I prefer the Madoka Magica's. In this anime, the soundtrack isn't that rememberable.
The opening and ending are amazing.
Overall score (my opinion): 6/10