This seems to be a well-rated, popular series, but I dropped it after 5 or so episodes. It just wasn't for me.
The animation is pretty good, eye-catching stuff.
Mecha that air-surf on boards look cool for a short while and then just settles on being weird. I mean, the whole anime will show scenes of surfing mechas battling other mecha. Maybe the enemies will surf too but I didn't get far enough to see it. As a big Gundam fan (the more serious of the series), this "radical" take on mecha just doesn't hold my interest for long.
The characters looked appealing but their personalities did not impress me.
Yes, it is yet another kid-with-hidden-powers story. Yes, that's not remotely interesting anymore.
I can’t say "don't watch it", because I didn't see even a third part of it. Give it a try, maybe you can side with the populist vote if you are willing to watch another story of kids piloting unique mecha that surf.