I thought it was atrocious. I listened to it with my roommate yesterday and one of the riffs is almost exactly the same as "Last Rites/Loved To Deth" and there's another song that has the same tempo and key as Symphony Of Destruction (in fact, we were jokingly singing Symphony along to that track). Chris doesn't really add anything interesting to their songwriting and just wanks all over boring, unmemorable songs and the production is sterile as you can get with absolutely no balls. I feel like The System Has Failed was the last good thing they'll ever do.
Devy pretty much summed up my opinion on the new Megadeth album:
http://www.youtube.com/watch?v=VMRPY7dfU3s