It takes off where it's prequel left off. You must have seen the prequel to understand the storyline. They g into more details of the story, but there are a lot of things left unsaid. The characters are better explained than in the prequel. Some of the characters still get to your nerves though (in reference to my review on the prequel). The robots have nice designs and new attacks are introduced to the different mechas. It is better than the first season, although it's totally dependent to it. It seems to be more worked and better developed, with good art and good animation. Romantic,a bit cheesy, ending.

If you already watched the first season, I recommend you to watch this one as well.