I would say that the So Jealous is very consistent in sound and tone. That is not to say that all of the songs sound the same. 'I know, I know, I know' is much quieter than WWAG but still has some amazing hooks. The title track has a very interesting intro before settling into the main groove.
T&S have written an album of catchy hooks, simplified instrumentation, and honest, personal lyrics.
All in all, this is my favorite album from all of last year. That is a tall order when you think that Smile, HTDAAB (U2), and several other really excellent efforts came out during that period.
David