I was there for the last weekend in September. Was there for the last days of the Anniversary promo, and the first days of the Year of a Million Dreams promo. We loved the
Free Dining Promo. We got our room request, no trouble, even the fridge we wanted. With little kiddos with you, you may want to consider renting one for your stay too. You can keep milk, or whatnot in there.
We stayed Preferred View in the 60's building. The food court was fine, never had a problem finding a place to sit. Like the Pop food court better than the one at POR.
Never swam in the Hippy Dippy, but never saw it to be crowded. We spent our days in the Parks, though.
I have stayed at POP, and POR, and find the bussing at POP to be much better actually. No complaints.
The only time that it seemed TOOO Crowded was at check-in.
Remember, too, that this was the year that Disney over-sold the Free Dining promo, and had to offer other dining alternatives and perks for guests that could not get TS seatings. So, I would say that you needn't worry about the Free Dining crowds because I am not aware that such a condition exists this year. Anyone?