Obviously an underdog years before, SnS made it big later on after its initial release. The story at first my confuse some 1st time viewers but later on will come to understand it quickly as flashbacks and narration in the series are imminent.
I like the OST because of how it delivers and blends well with the series progression. The artists themselves are all deserving to be included in the OST.
Uncanny and hilarious situations are also delved into the storyline which makes it even more enjoyable to watch.
Overall, this is not your regular girls-with-swords-bash-monsters anime series. SnS for once have broken beyond the regular status with its cute characters, flashy fight scenes, comedic situations and a deep storyline to boot.