We attended on June 20, it was me, my DH, and 2 DSs, 6 and 9. We had attended the regular DAH once, back in the first group of them which I think was Spring 2016, and that was amazing. As a short summary, we still enjoyed this event but preferred both the crowd level and atmosphere of that first DAH.
We went in using out APs around 7:15. I had made FPs for Splash, BTMRR, and SDMT, so we rode all of those and were done just in time to get a jammed in spot to watch HEA. In hindsight we should have just not worried about the projections and gotten a worse spot that wasn't so crazy, like behind the castle - now I appreciate our usual viewing from one of the MK resorts or the dessert party!
I did stop into Memento Mori on our way by at around 8:30 and they had all of the merch out. I didn't want to waste time since we had to get to the FP for SDMT and HEA, so I quickly grabbed a t-shirt, the women's shirt with all of the villains on the front, a spirit jersey, 2 hats, and a Tervis and checked out quickly. They seemed to have everything in a good size selection. They didn't ask if I was attending or not and didn't have anything separated off in the store, but I did have my wrist band on so they might have just seen that and not asked.
After HEA we had a teacups FP that I had been able to grab as a 4th FP, and we rode the People mover at 9:54. The event officially started during our peoplemover ride. When we got off we walked onto buzz, then got snacks in tomorrowland with a very long line (but probably only took 5 min). We did Astro orbiter with maybe a 10-15 min wait, then at 11:00 did Space Mt. It said 20 min, which was down from 30, but I didn't want to take time to come back to it so we waited. it was definitely 20 min, but not more. I do like it without the lights on, and no one had a cell phone light shining the entire time like happened when we rode during
MNSSHP, but I couldn't notice anything else different. I couldn't discern any villainous voices or noises

. I think calling it an overlay is pretty lame, I would rather the regular ride and not the 20 min wait. After we got off we got a diet coke and hit the bathrooms, then did the speedway with a 15-20 min wait at 11:30.
At this point I was having fun but definitely thinking that the crowds and lines were not what we were hoping for, and WAY more than our previous DAH event. I'm not sure if we shouldn't have started in Tomorrowland, or if possibly the speedway and Astro-orbiter always would have had some lines since they load so slowly, or what. But for our first 4 rides 3 of them had decent waits (all except Buzz). During our previous event literally every ride had been a walk on for us.
From here on out everything was walk on, but the event was over half over (we did our first of the walk on rides at 11:53). We did barnstormer, Dumbo, Little Mermaid, Peter Pan, and haunted Mansion. We possibly could have done one more thing - I wanted to hurry to Pirates - but then we might have missed the beginning of the 1:00 show and I was outvoted. Everyone else just wanted to hit the show. So we went to the BR, got Popcorn in Liberty square, got a photopass shot to the left of the castle, and got a decent spot for the 1:00 Villains show. After the show we moved to where we had a front row spot for Maleficent, she came through at 1:36. As soon as she passed us we walked actually ahead of her down the right side of main street and left. We got right onto a ferry and walked back to the Poly, we walked in our door at 2:05.
So..... we had fun, and don't regret doing it. I wish we could have also ridden Splash, BTMRR, Pirates, jungle cruise, and magic carpets (which would have been nearly everything, I think). I really wish we had gotten pirates in, even though I don't think the overlay was a big deal. I'm ok with missing splash and BTMRR only since we had a FP for them first, but I would have liked to ride again. If I could do it over I would skip the Speedway, since it had a decent line and is slow. That might have gotten us on 2-3 other rides on the other side of the park with that time. Another thought would have been to start on the other side of the park, in Adventureland, but then we might have missed most of Tomorrowland, who knows.
We preferred the previous incarnation with no villains and no crowds, but maybe that is gone for good (I don't know since we did it so long ago back before this was popular). There were lots of people there, particularly the times we spent in Tomorrowland and around the castle, but also just in general. We never felt alone, or like we were in a nearly empty park like we felt before. The closest was up in new Fantasyland walking to the Little Mermaid. I also didn't care for the DJ music and party atmosphere in the hub. Not that I don't like that, I just don't like it at Disney in the MK. IDK, just not what I'm looking for in that situation. This almost felt like MNSSHP lite, which isn't a bad thing, it just wasn't the same at a regular DAH. I was expecting to walk on to everything and have time to ride pretty much all of the rides available (well, prior to reading reviews. After reviews I did expect lines, but I could still hope LOL).
Sorry this got so long, that always happens to me.
Summary:
Splash FP
BTMRR FP
SDMT FP
HEA
Teacups FP
People mover
Buzz
Snacks
Astro Orbiter
Space Mt.
Speedway
Barnstormer
Dumbo
Little Mermaid
Peter Pan
Haunted Mansion
Villains Show
Maleficent