I dropped it after the fourth episode. At first I thought it was interesting and I got my hopes up because Trigger was invovled, but as the anime was progressing, I got bored and lost my motivation to watch it.
I guess it looks good, and the characters could be a reason to watch it, but most of them feel really generic to me and didn't attract me that much.
And I don't even want to talk about their powers, since they don't seem to serve any relevant purpose.