I think its more comparable to bungee jumping or sky diving than a roller coaster or drop tower. There is more perceived risk. I think the sense of falling slowly unattached to any physical object, with ability to move in any direction (I'm guessing) could be a magical experience.
I think there would be a similar experience to a reduced-gravity aircraft ride.
Its not necessarily just the physics of falling down a tube slowly thats interesting.
Getting a little whimsical, what if you had an Alice in wonder land experience. Wrap the whole "ride" in strange and fun visual effects while you fall down the rabbit hole.
Or, have protrusions from the tube where you could jump down to different levels and climb up the sides.
But, I really don't know the limitations or whats possible.
I think there would be a similar experience to a reduced-gravity aircraft ride.
Its not necessarily just the physics of falling down a tube slowly thats interesting.
Getting a little whimsical, what if you had an Alice in wonder land experience. Wrap the whole "ride" in strange and fun visual effects while you fall down the rabbit hole.
Or, have protrusions from the tube where you could jump down to different levels and climb up the sides.
But, I really don't know the limitations or whats possible.