I usually don't like saying things like this, but this is the best Megadeth album since The System has failed. Over the last fifteen years, whenever a new Megadeth album came out, I thought it was fine but I hardly returned to it. Some of them were really average. This one grabs me, however. The thrashier moments are fun and powerful, the melodic parts are subtle and not generic at all. It really works. My favorite songs are Dogs of Chernobyl, Sacrifice, Mission to Mars and the title track.