The soundtrack is fantastic. Maybe too early for me since I haven't listened to it more than a couple times, but it may be the best live album to listen to by Maiden. The sound is fantastic and some of the old songs with the 3 guitars sound much better than they did on RiR and DOTR. Also ROTAM being played is like icing on the cake.
At best, it will probably come in at 3 or 4 for me. It currently is four but it could overtake Beast Over Hammersmith over time.
My biggest complaint is the fact that the CD is not edited to sound like a complete show. It really irritates me to no end that the audience fades in and out between songs. I understand and have no issues with how it is done on the DVD, but the CD should have been tweaked to give it the flow of a full show. Sure it will sound odd when he references different cities, but it would flow a lot better as a live album (Tesla did this with their RePlugged Live, with the stage banter referencing different cites at times, but it still was edited to sound like one concert).
As for where this ranks on the Maiden Live CD Release list:
1 - Live After Death (still number one - this CD will be hard to top in its full 20-song glory, including the original five Hammersmith tracks and the 3 songs on the Castle Records re-release: Murders in the Rue Morgue, Sanctuary and Losfer Words)
2 - Rock n Rio
3 - Beast Over Hammersmith
4 - Flight 666
5 - Live at the BBC
6 - A Real Live/Dead One
7 - Maiden Japan
8 - Death On The Road
(not ranked is Live at Donnington simply because I don't have it, but I suspect it will fall around ARL/DO)