Good but....
The only problem I had with it was the voice acting. Everyone had the same voice (kinda) Satan, Cain, Necromancer and The Master all sounded the same. It's not that it's all that bad, but its confusing if you aren't reading the subtitles. I like this series, but to do it justice, you need more voice actors. Give Cain a deep bass type of talk like megatron on Transformers Beasties... or like Sauruman on LOTR. I'm not sure how to record voices on my laptop, or I'd offer to lend a hand. I've wanted to voice act for a while... it's been a dream of mine ever since I was a wee lad....
Sorry bout that... back to reality. You have a good series here. You just need more voice actors.
Peace. MrBigGuy