I am an AP holder at DL and just returned from a week long WDW trip. I have used the DAS system at both parks. Here are some of my thoughts and experiences. I originally got my DAS at Disneyland and was worried about it being an issue at WDW after reading about the difficulties some people have had with cast members. Following all the amazing advice here I was able to secure a WDW DAS by clearly and simply stating my needs. I did mention my condition but I don't think they needed to know that. I did get my DAS at the AK guest services window. With the current FP+ system in place I used the DAS far less then I had used the former GAC program on our previous WDW trip. It was nice to be able to plan ahead and schedule the rides for a pace that worked for my dd and I. When I first got my DAS at Disneyland I was a bit irritated at having to find a kiosk to go to. While I do wish there were more Kiosks I realize now, post WDW, that I prefer this method. It is nice to be on one side of the park (or even a different one) and get a time for a ride at a Kiosk and then walk to the ride. WDW's system of going to the ride entrance was a bit overwhelming for me as there was a lot more backtracking then what I do at Disneyland. This is especially true since WDW is so much more spread out then DL and there are not always other attractions close by. That being said I did appreciate having the option of using the DAS when needed. All in all I have found the DAS program to be useful but do prefer the Kiosk style method. I love to be by Mattherhon and get a time for say Radiator Springs - this system works nicely for the way dd & I tour the parks.