There's nothing really bad about this series, it's just not my favorite flavor of anime. My one major drawback is that these are supposed to be middle-school kids but they act more mature than some 50 year olds do with regards to relationships. It doesn't significantly impact the show, but at times I would like find myself thinking, come on this is the exact opposite of how a pre teen kid would handle themselves. Overall it was a good series... Great art, great story... I'm just more of an action anime fan, but this was a decent palate cleanse in between series.