It's a great album, the only misstep for me is I Had A Dream (well that and the awful album cover,) the concept is good I just find some of lyrics a bit misguided and it's all a bit too, as Michael Cragg puts it, Jessie J-esque. I'd put it above her past two albums (excluding the wonderful Christmas album), will have to listen to all of her albums again to rank it properly, although nothing will top My December for me.
Nostalgic is the stand out track for me and needs to a single, with Piece by Piece (which has really grown on me, I think I really misjudged it on first listen) and Invincible not far behind. War Paint and Bad Reputation are up there as well. My stand out tracks usually change after a good few listens, but I can see my opinions on Nostalgic and Piece by Piece changing.