I still loop the opening theme ^_^' It's like I'm waiting to see if they can top it... The ending theme I like, it's beautiful and sort of haunting, I just wish it had been done so you could hear what was being said better. That's the only aspect that sometimes pokes at the back of my mind. To be honest if they just did a tasteful remix the original songs I think that would be interesting too...
Keiichi's Seiyuu was awesome, I liked all of them more or less.. I can't remember any actually annoying me at any point, Takano gives me the creeps but thats what she is supposed to do right...?