Don't see a thread about it but I'm really digging the experience so far. There's definitely some pay-to-win aspects but so far, it hasn't been that bad.

Lots of free beginner events to get your line-up started, energy recharges pretty quick, I spent some free Nutaku gold on the cheap packs to get ViP 1 but you definitely don't need them to progress much. Art is also similar to Heavy Metal Babes - very appealing to the eyes.

Also the title loading BGM is some of the most bomb soundtracks I've heard in a while, and of all the corners of the web to find it in the first place.