I did a little math, Cabe.  With 3 adults instead of two, you will be paying $805 for the meal plan, vs. $560.   Plus your hopper tickets for 7 days cost you $855 vs. $632.  That's a total of $468 difference.  Even then, if I did my math right, you appear to be paying $131/night for your room (assuming you are staying 7 nights) instead of $101, which 3PrezGirls appears to be paying. 
Quick check into that shows that if you had 2 adults staying in the room instead of 3 - the rate would be about $110/night. 
Unknowns: tax included? what season are you staying?
Those calculations were done assuming that 3PrezGirls was counting her middle daughter as a dd2, and not dd3, as she lists in her signature (significant $ difference there).  
So I think it's still a great rate - but I don't think you're deal is bad either,  considering the circumstances.  
- Todd