I have only seen the move which was all the material from the first season.

Even with the movie I am still not sure what people really love about this series. Your time would be better spent watching Ga-Rei Zero which I think it more what your looking for.

They key to understand here is that it is supposed to be a magical girl series of which for that genera this is pretty good. Obviously not Nanoha good but a good show for the genera.