I've seen a few posts about
DAS (I'm sorry those people had rough experiences and this is not a response to those) and thought I'd post about how it went for us. We used it well at all 4 parks. Like everyone else, we didn't get as many rides in as usual, but viewed through the lens of how crazy the parks are right now, it was immensely helpful with my son. My observations:
There was usually a line to get a return time. Lots of people being turned away because ____ (they didn't have DAS set up correctly, they just wandered into a shorter line, they wanted "those fast passes like all of these other people," etc etc). I got BIG smiles from cast members almost every time when they saw I knew what I was doing.
You WILL have to wait the entire return time. If they say 3:58, they mean 3:58! I know in previous times they sometimes allowed people to just walk in or return a little early, but not anymore. We saw a lot of people trying to abuse this.
Many people don't know that you don't have to have your entire party present to get a return time. Me and my husband took turns getting it while the other walked around with the kids. On the flip side, you MUST have your entire party present when it's time to ride. Cast members were very strict about not letting people hold places in line for others.
When getting a return time for a very popular ride like 7DMT, we tried to get them right before meals, so we were in a/c while we waited. Also remember they don't have an expiration window like traditional fast passes. You can get one before leaving a park to go rest or swim, them come back and use it later. They do expire end of day though.
After tapping in, we still encountered waits in about 50% of lines. Still shorter than the standby line though.
Lastly, and this one was a new discovery for us - any Guest Experience member under a blue umbrella can make a DAS reservation for you. I got one by the center entrance to World Showcase (by where the Christmas tree goes up) with no wait. Asking nicely helps