I'd do nothing but reading if I could (ok, maybe eat some great food, buy some fancy shoes between two books...oh, and spend some quality time with the gorgeous guy I married while I am on reading-break anyway...)
It has the same weaknesses as the others, Danyael is still too good to be true, the story comes across as artificial, some characters and plot lines were introduced and then abandoned (e.g. the telepathic doctor who regularly stole Danyael's blood - it was to explain Danyael's shild in the first installment - it somehow vanished from the story...)
I still don't like Zara, still don't see why she needs to be so unearthly beautiful and seductive.
Galahad is more and more just a template, not a real person, he changes according to what is needed to further the story.
It kept me reading.