I just got this $798 offer in the snail mail today for Princeville - Westin Ocean Resort Villas. If I were to book it normally, how much money does this $798 offer save me?

I have kids. Is this a kid-friendly place or should it just be for me and the wife?

Looking for some opinions on whether I should really jump on this or not and if it's really the hotel for me. Is there any beach at all??