First of all, this is an action comedy, harem ecchi romanced, school anime with quite the amount of fan service, if this bothers you, you should not consider this as you will see quite the amount of nudity.
If you on the other hand are not bothered by this, please keep on reading!
Ever since finishing High school DxD New which is the season 2 of this show, I have been trying to find another decent ecchi, harem show. Sad to say i have been very disappointed, and i dare say the reason is that this show unlike many others of it's kind, do have a plot. I also felt like the characters in this show developed quite a bit throughout the show which I find rare in this genre. (Still a lot of show's I haven't seen)
What I also think helped this anime which i liked; - Likable characters! (Especially Issei and Rias)
- Good voice acting (Japanese, no clue about dubbed)
- Actually has a plot! (Rare for this genre from what i've seen)
- Pretty cool action scenes
- Protagonist not a total wuss
Probably forgotten about some but anyways, an absolute favorite of mine in this genre and one anime I highly recommend, if you can live with some fan service.
Probably a 8/10 to be realistic, but I am a huge fan giving it a 9/10!