Follow the same structure, have the same tempo, don't use any unique instruments throughout the album, similar vocal inflections.. I agree with the other poster 100% about gold rush
that's just a thing for this record as I recall, as the songs were all recorded fully by Ace and tha point was to make them playable solo, Ace was looping a lot of this stuff to create a beat and sang and played over it live, as for me it was great and different then anything he's done... However, it is still my least favourite, although enjoyable.
I'd hope this would reach the level of The World We Know, which is one of my favourite albums. Can't wait for some samples.. And I like that cover art : )