I have to say that Dan Da Dan is so far a really stand-out anime this season! I've so far watched though episode 4 and it's been a great story with some great characters, humor and excellent animation so far.
The anime is a story about a boy named Orarun who believes in UFOs, UMAs and similar things but denies that Ghosts and Spirits exist and a girl named Momo who believes in Ghosts and Spirits but denies that UFOs and similar things exit. They both end up with believing that UFOs, Spirits, Ghosts and similar things are real as face adventures against said entities. There is a lot of great character interaction, humor and action as the two face their adventures together.
Besides Crunchyroll this show is available on Hulu