i can say that I was a bit upset when I first bought my AP- they are very limiting on information, they told me, that I would get info in the mail- I got a "voucher" which looks a lot like a floppy credit card stuck to a basically plain piece of paper- pretty lame if you as me.
i had to dig to find discount information and it wasnt until afterwards that i realized that I dont have access to the water parks or Disney Quest- bummer. So you have to tack those on.
Lucky for me DH doesnt really have a budget- I mean Im not about to do a $120 tour more than once a trip, but hes not worried about paying for the water park.
Also, by doing the AP, vrs UPH you cant return to the water parks on a different day. For ex: you go do a day of TL, but then one day at MK you are really hot and feel like changing the days plans with half a day to a water park- well Ill probably skip the water park, and head to my resort pool- cause I would have to pay again, for only a half a day. If i had the UPH I would just jump right over to that park. UPH lets you go to do DQ whenever you want to, we skipped it last time (can only cover so much ground) but were thinking of checking it out- i know I would have to pay, but if DH has to pay with is PHplus too, we may skip it again, an arcade is something I can do for maybe an hour- 2 at the very most.- If I had the UPH we would probably add that on before dinner a couple times.
I only have the voucher, haven't even been there to use it yet, so I have not been bitten by the "AP bug" yet as far as booking multiple trips. We are talking about a second trip, for a few days around our birthdays in November, but the AP has little bearing on that. The room and airfare still get ya.