I LOVE HHN. I wanted to go ever since high school when they started doing The Walking Dead, then they did more IPs.I was on my final year at A&M when I finally went to HHN 27 in 2017, mostly because I am a SAW fan and they had the house that year. I don't miss a year since then.
This year's has been BUSY. Terrifier has reached capacity multiple times, and many people at the preview night didn't get to do all 10 houses. If you want to do all 10 houses, you NEED express. I never go without it. I also do Unmasking the Horror tour 6 house and love it.
This year's is just strong overall, lots of great IPs and originals. Universal is considered the best event as well, they won the golden ticket for like 20 years in a row. There's a documentary about haunts called The Art of the Scare that I watched on Netflix a couple years ago and all the industry people say Universal is the event because of how much money they spend per house. Orlando also gets a bigger budget than Hollywood and tends to be the better park every year.
It can be very crowded, and they don't space out people well enough at the houses, so you may miss scares, etc, but I still love the event. The sets are nuts, like walking into the movies. I will be there in 3 weeks and for the first time I am also going to Hollywood the day after Halloween.