It’s not weak at all; in my opinion it’s a really strong album, just different from their other music.
It’s got amazing synth and some heavy dance beats, all together with dubstep. It’s a “Westerized/Americanized” album but that doesn’t make it weak. In fact, I think that makes it stronger; that miss A can do so many styles well.
It’s one thing to change your music and become a “sell-out,” it’s another to change it up but still keep it your style. It’s good that miss A is able to adapt to trends in music but still keep “miss A’s” style.