Sound — 10
This is definately more mature than BN's debut album, Your Favorite Weapon. While YFW had an electric feel to it, Deja Entendu is a more meaningful, emotional stab at music. As apposed to quick riffs and solos, Deja has slow, repetitive ballads based on the beat of the drum. You can still tell it's Brand New, though, because the endings are still fast-paced.
Lyrics — 10
The lyrics here are almost better than YFW's. Jaws Theme Swimming is about getting older and realizing the people, your parents, for example, were right all along when thay said your were being foolish ("We learn as we age we've learned nothing"), and I think there are a few stabs to Adam Lazzara in there ("Take a leap from out the window, cause it's way to far to go through the door"), who had an affair with Jesse's girlfriend.
Overall Impression — 10
This is by far the best music out there. No, that's not opinion. Unlike Nelly, who writes songs about his how his grillz are pimping, Brand New writes songs about their past. Songs they mean. The best songs from the album are probably Jaws Theme Swimming and Guernica. Go out and buy this, I guarantee you'll at least find it catchy.