Review of High School DxD

High School DXD is an ecchi/harem icon. If you are a fan of good storytelling punctuated with fanservice then DXD is for you. Some opinions fault DXD for being non-canonical with the manga or having too little story. The ecchi/harem tag can definitely create this illusion of a lack of storytelling, and sometimes critics are correct. However, DXD does an extremely good job at finding the right combination of content and fanservice making DXD very special. DXD found a way to advance its story in every episode instead of using filler episodes like most ecchis. It's also important to remember that an anime is ananime, and not a manga. Seperate animals should be treated and designed a bit differently. In this way, some deviation from the manga is permissible and understandable as coming too close to the manga could lead the animated version into pitfalls. All in all, DXD is a must watch.