I gotta say, I love the trackless aspect of it.
What I don't care for the fact that you can't see everything from every seat. If it's about re-rideability, the Haunted Mansion directs every doombuggy the same way and I find that better. It allows me to see what I was meant to AND when I re-ride it I always look around in every scene to see little details. I know they wanted this big, immersive environment with large set pieces, but some people might only be able to ride it once, and they could lose out on seeing some of the punchlines or details if they're not in the right seat or car. Everyone should have the same viewing opportunities.
The Mystic Manor and Winnie the Pooh rides in Shanghai are both trackless and you can see everything. When you ride again, you can start to look around and see details and little nods and Easter eggs, but if you only ride once, you don't miss out on anything.