Alright!!! We have the first episode of one of the recently popular shounen Manga turned Anime, Beelzebub! This is another adaption done by Studio Perriot, who people are most familiar with for doing Bleach and Naruto, two mega popular Shounen Giants.
So cutting right to the chase, is Beelzebub good? Yes. The story from the manga has been almost faithfully adapted, except for a few tweaks here and there.