Kind of surprising Amazon "promoted" the reviews from the previous incarnation of this album to this new version. The whole selling point of this new release is the fact it was completely remastered, remixed and restored by James Williamson, and therefore, while valid for the older version, the reviews here are for the old version and not applicable for this new one. If you are reading this now, you know what I mean as it doubtful anyone randomly searched for this title.
Since those earlier reviews sum up the album content, there is no need to review Kill City yet again here. Comments are restricted to: "Is this title worth buying again?" for the new mixes.
From what I've read, the old version was mastered from the original green vinyl release of this album, recorded in 1975 and released 2 years later. While the earlier version on BOMP Records did a decent job, the older version had its sonic shortcomings. Not so here: this new version sounds new, as if it were recorded yesterday and it becomes obvious once you push play... a very brilliant remastering and remix. Additionally, the remixed tracks are oft times far superior to the familiar versions, although in some cases, the differences are lateral... what sounds like change for the sake of it. That said, guitar work is lifted (including some riffs never heard before), and for the first time, the horns sound like a relevant part of the whole. Iggy Pop's vocal work benefits from these new mixes too. In some cases, "new" lyrics have been added from the original tapes, and those tracks are the better for it.
To answer the question raised above: YES! It is worth buying it again! However, for fans of Iggy Pop and James Williamson and of this album in general, this version does not replace the original, but rather, should sit next right next to it on your CD rack (although if you can only have one, make it this new version). Both versions are valid... both versions are quite good.