Really good atmospherical intro, I love Bruce's delivery as a celt warrior getting psyched up for battle. When it gets heavy it loses me a bit, even though the melody is still good I think the verses go on for too long maybe and it doesn't get me on the edge of my feet all the time. However, I love the moment the "chorus" hits (Spiiiirits cry for a God from the grave...). Nice melody and the guitar underlying it fits. Great H solo and then that celtic melody that gets repeated maybe a bit too often. It's good and 'Arry's bass on it sounds great but imo it could be trimmed a bit. My favorite Janick solo on the album follows it then Dave and Adrian do good follow-ups. The hook to go back to the chorus melody is awesome and my favorite part on the song, love the guitar playing those melodies and Bruce comes back perfectly. I like the quiet ending as well, again love Bruce's delivery.
Overall, I can see why some people don't like it very much but the good parts are so good that it still sounds pretty solid to me. Not on the top half on the album, but probably my 6th favorite song atm. It would be even better as a 7-8 min track.