Pro Tip: It doesn't take itself seriously, and neither should you.
This is an anime where one band has a member described as 'the only sane one' (an understatement) and another band with two 'aliens'. Both bands are managed by an egg in a suit, who can only be calmed by being 'whipped' by his well-endowed assistant. Together, they must save the world through the power of music, friendship, and cliched plot devices reworked to be charmingly insane and goofy.
SbR! makes fun of tropes, of genre cliches, but also lavishly uses them, twists them, and pokes fun at them. You get magically transported to another realm with no idea how or why? Who cares! You're in a BAND now (insert 'squee' here)!
The part most likely to put people off (or at least, that weirded me out the most) is that during music/battle sequences, the characters transform into 3D chibi animal... things. It's odd, not going to lie, but in a time where Pop Team Epic is about, this seems somewhat tame in comparison.
All in all, it's a goofy, fun, and at times genuinely intriguing/emotive idol anime that managed to make me like an anime in the idol genre. If you find most music/idol animes cringe-worthy and completely lacking in self-awareness, then this anime is the perfect antidote, still equipped with all the cute cat girls and bishounen boys you could ask for.
tl;dr: GO WATCH THIS, CATTLE!
