Along with A New World Record this is ELO at the peak of their powers. Furthermore, side 3 is the peak of the peak; the best side for me of any ELO record. They even give some praise to Birmingham Blues; quite a nice track but probably the weakest on the album. I can't think of too many better double albums and it's up there for me with Goodbye Yellow Brick Road, Tusk and Beatles' white album.