If you already own this album, this remaster is definitely worthwhile, with the extra tracks worth the money. If you don't already own this album - it is an interesting mix of songs with vocals (mostly by guest vocalists) and prog-rock instrumentals (loud - don't expect the light acoustic instrumentals of Geese & The Ghost or Private Parts & Pieces: these are full-band instrumentals with power!) Probably the biggest variety of musical styles on a AP album with vocals (though I still prefer Wise After the Event as the ultimate AP album - also excellent in its remaster.)