At first glance it looks like a kids' show, and the first few episodes do seem like they want to sell you their toy. But also starting from first episode the comedy showed off its fast pace, from the character interactions you could tell the main cast genuinely cared for each other, and the attention to detail with the plot was great, so the fact this was made for promotion you just forget.
It especially hurts because the anime showed it *could* deal with character emotions in a believable way. The times it did so were touching.
And yet the moment they tried to do large-scale serious drama everything started to fall apart. Despite how careful they were being with character actions, the main cast started acting very out of character when it most mattered (serious moments). This also goes for side characters, every single one acted in ways a person would never act during the serious arcs.
So while the anime does keep up this façade of good comedy and character interactions for a long while, it decides to head into a more war/fighting related plot, which would be fine if it wasn't for the dubious writing. Or maybe it's dubious in my eyes, but it was written like this because Legendz is ultimately a kids' show. But that's also an excuse, in the beginning they could keep up the quality while at the same time remaining as serious as a kids' show can be. It really feels like halfway they gave up on good writing and just added whatever a kid would find cool.
My point is: don't be deceived by thinking it will deal with things in a believable way. As long as you expect kids' show developments and actions from both characters and the plot, you may avoid the bad impression this ended up leaving on me.
