I am not sure what a lot of the negative reviewers are going on about here. Yes this album is not new or inventive, that's because unlike Metallica Dave Mustaine believes in giving his fans what they want, which of course means more of the same, and in that respect this album succeeds admirably with not a bad track on the album. Therefore any comments panning the albums lack of originality or progression are just plain dead in the water. Having said that the same reviews are right to point out that nowadays there is a lot better out there to be enjoyed, producing inventive riff heavy, intelligent metal that you can still air guitar and head bang too safe in the knowledge it's a bit more cutting edge.
I like MD and its fair to say I have gained some enjoyment out of every album Dave has ever done (this one is no exception) but it would also be fair to say this is not his best. It's a shame because there is very little to separate this album from the last one `the system has failed' (which was more of a return as opposed to a return to form) and yet I feel that was a slightly better album with clear and catchy songs and a little more of a `heads down and go' approach, this new one often feels like the bottom has dropped out of it (I mean musically, not in a production quality sense which is actually very good throughout as you would expect), with the odd song feeling a bit lacklustre. Couple this with the odd meaningless or silly lyric and you can see why even hardcore MD fans may be disappointed.
A good example is `Gears of War' here I was expecting a suitable track to ride my (imaginary) tank into battle crushing the machine gun blasted dead corpses of my enemies and instead you get a rather wimpy bit of metal that's over before it even gets going.
In the end the bottom line comes down to how much you like the old school, this isn't going to set your MP3 player ablaze and I doubt most fans would be playing it over some previous albums in 6 to 12 months time. If you're a MD fan of old you should like it but if you're just a metal fan in general its best to look elsewhere first.