I thought the same thing. Mostly it's pretty tolerable (with the exception of "I'm Not Your Hero," which, for some reason, drives me crazy) lyrically. Musically it's pretty stunning, though. Super catchy songs that you can instantly sing along to. Interesting guitar tones (which I was surprised about), especially in "Shock To Your System." Man, that song gets me pumped.
Cap it off with the fact that "Now I'm All Messed Up" is a pretty much perfect song in all ways makes me super happy with this release (which I wasn't expecting to even listen to).
P.S. Seriously, though, how good is the last chorus of "Now I'm All Messed Up?!" The alternating "Go" and "Please Stay" is sublime.