@sailfish Honestly it was great. We were in the third terrace dead center and had a great view even though it was pretty damn loud. The place was packed, moreso than 2018. The whole psychodrama over the holograms was overblown. I actually think the vocaloids looked sharper and more realistic on the LED screen. My biggest complaint was that it went by way too fast.
My favorite moment was when Miku sang Lucky Orb and the whole crowd started singing along with her. The place went nuts when she sang The World is Mine.