I saw them live, and they BRING IT. IT was also one of the longest concerts I've been to. The opening act played an hour and a half set, they played an over 3 hour set, then came back out and played a 45 minute encore with the opening act. I got to go backstage to meet them afterwards and got them all to sign a half gallon Crown bottle (backstage had a free open bar and snacks!). They were all pretty cool, down to Earth dudes (or at least they came across that way).
I haven't heard their newest album yet (I don't know if they've released any singles from it yet). They were putting out radio singles for the last album (from 2010) as late as this summer (and they were some of the weakest tracks from the album).
Unfortunately, the farther along they go, the more their new songs sound just like rehashes of their old songs, which is sad, but not everybody can be Lennon/McCartney.