I was about to write a personal review, then I realized that many people don't want major spoilers and I want to respect that. But...if there's anyone wanting to watch a POV, I definitely recommend Theme Park Shark's low light video.
I thought of a cool thing I wish they could've added. Maybe before the I-Rex emerges out of the bushes, an intercom voice could scream "it's in the building" just like from the original attraction. That would've been a nice homage.
But overall, WOW. I'm very happy with the upgrades.