The new version is ruthlessly faithful to the original. Sure, the guitars are cranked up and the drums are washy pop-punk instead of programmed '80s clack-thwock, but the arrangement follows Henley's precisely, right down to the echo on "Remember how I made you crazy (crazy) (crazy)..." So it's fun to hear, but no revelation to those of us who watched music videos 20 years ago.
One revelation is the song itself: the words, melody, and chord changes. Cover versions often make you hear a familiar song again, and realize whether it's actually any good. And "Boys of Summer" is a fantastic song.
I could almost forgive Henley for all the dreck the Eagles put out in the '70s.