Now, I've been a fan of this genre since... Sailor Moon came out.
My thoughts on this, is that this is by far the best of the mahou shoujo genre that I have seen in years. The ending was actually very good, and also keeps it somewhat open. This anime is going to be ranked high in my list among other mahou shoujo animes I've enjoyed watching in the the past couple decades. The characters were likeable, the animation was unique and artistic in some ways. And, the story was much different than what I've seen in other mahou shoujo series.