Its sounds amazing and its their heaviest by far.
This is a thing I miss from the Classic Maiden. Their Albums were all memorable, right until Seventh Son even then if I back then didnt though it was. After that... I know a song here and there but cant seem to listen to a full album because I get bored
Event Book of Souls gets really boring and I cant even remember the last time I heard it... probably 2 years or more ago. I still listen to the 8 Classics very often sometimes I spend the entire week listening to them as part of the playlist.