I never had any interest in watching the animated series, honestly. Especially when the actual series is much more appealing than some drawing that don't really look like Sam and Dean to me. Just never grabbed me.
I did see a scene of it on youtube, and laughed my way out of the tab. Lmao.
SPN is dark and scary? I never thought of it like that, but then I am pretty macabre. I grew up playing/watching my older cousin play Resident Evil and Silent Hill since I was old enough to babble. Now I play all those horror games. MY LIFE.