I can offer our most recent experience - disclaimer it was only for 1 attraction so not really an adequate sample size.
Background: I had been the
DAS user for many years and was recently denied. I almost always travel with only my young DD (younger than 7). However, for our most recent trip, we were joined for the first half by my friends and their children. Even before the DAS changes, our plan was for the whole party to get Genie +so we could be together and if it didn't work for me (i.e. needed to leave the line, or wasn't able to make the specified window), my DD would go with my friend and I would sit out.
Once my friends left, my DD and I attempted to ride attractions via standby. For many, thankfully, we lucked out (i.e. Pirates had a 5-min standby line) as crowds were pretty low and our wait was never more than 10 minutes. Obviously, that wasn't the case with Slinky Dog Dash, which is my DD's favorite.
When we arrived in the standby queue, the line was 100 minutes long. [Note, before anyone comments and asks why we didn't use
Genie+ for SDD, we did. We purchased Genie+ twice on this trip for SDD - once was a success with my friends and once the ride was down. We then attempted to rope drop SDD and again, the ride was down.]
So against my better judgment I told my daughter, we'd try standby. I briefly explained the situation to CM at the entrance and inquired what the process would be when I needed to leave the line - she said we could just leave and then come back. I asked her if we had to notify a CM when we were leaving or where we would come back to, and she said to come back to the entrance and speak with her and she would decide. She was kind, but it felt like there was no plan - she would just be making the decision in the moment - either that or she just had no idea.
I lasted 15 minutes before we needed to leave...and I made the decision not to return. I didn't even see the same CM at the entrance, which added to my confusion of how this all would have worked. I felt awful for my daughter but if I had to leave 3x's during a 100 min wait - which unfortunately is a realistic scenario - it would have been too much for a young child. I just made the call not to put my DD through that for me. Not sure it was the right choice, but it's where I landed at the time.
Granted, we did travel during the early stages of the rollout, but my expectation was that for some of the more in demand attractions, they would have had the process nailed down a bit more...but no...still remaining hopeful that over time more refinements will be made.