We were down there from May 2-8. First time seeing Harmonious (meh, WoC at DCA is much better), first time seeing the new MK nighttime fireworks (meh, not alot of ooh or ahh at all). Both shows were "fine", but lacking. They felt mediocre compared to older offerings. I was hoping for something awe inspiring out of the tech on Harmonious, but it was just as boring as the last 20 years of Epcot nighttime shows. Riding Remy was okay (screenz!), but it's just not that great.
My kids liked the pop up parades when they saw them, but the whole trip felt meh. Over crowded (how is this possible with the supposed attendance reservations/restrictions? ), and some CMs seemed flustered and not engaged. But I did score a free mickey bar, so there's that. We missed dvc previews of GotG by a day, which sucks, but even with that and Tron opening, we're not planning another dvc trip for about 2 years.