I got it too and already gave it its first spin. Fiirst spin meaning that I have never listened to this material before.. not even in Youtube (Man, that was difficult!). I really wanted to be surprised by the finished stuff.
So far, I'm VERY impressed by the quality of the sound. Most of the Therionized classical pieces are really well done, my personal highlights being Notung! Notung! and 'Dies Irae'. The small part of the Dvorák 9th symphony is also very well done... but it's a little bit too short, I wouldn't have mind a extra minute or so (Hey! it's one of my favourite classical pieces)
Anyway, for the Therion songs, Clavicula Nox is just glorious ... my eyes got watered and everything!
The other songs are also very good, but I found that the band overcomes the orchestra at many key parts (like the ending of Lemuria or during the "dialogue" in the middle of the Grand Finale). Surprisingly I liked more the Miskolcean version of Blood of Kingu than original one