I have the opposite experience (very low "passenger comfort") in tilting trains, and I always thought that this is what actually killed them:
I'm slightly suspectible to motion sickness (e.g. "normal" trains are fine, but sitting in the back seat of a car or in a bus can be a bit of a problem, especially when trying to read something).
When I was on a tilting train once (maybe about 10 years ago? AFAIK they are no longer in use) the motion sickness kicked in pretty hard.
PS: Interestingly, a tilted track (which seems to be quite usual now on newly built high speed tracks) doesn't affect me at all. I guess it was the general "wobbliness" of the tilt train.
There is no difference between tilted track and tilted train from what you can perceive from the passenger compartment, provided the tilt is done correctly.
I suspect tilt angle was perhaps rounded/approximated/delayed, which would feel the same as if someone had laid the track rather haphazardly on a bog...
AFAIU, the passenger compartment will indeed have identical angle and acceleration in both cases, as there is no other way to cancel lateral force.
What is likely different is the stability of tilted tracks (reasonably easy to make nice continuous tilts and turns) and tilted train's uncannily small lateral force, while still having time and angle discrepancies and inferior smoothness causing very noticeable over and undershoots.
There are two main types of tilt: active and passive. Active tilt uses a computer, armed with track geometry knowledge, to control the tilt. Passive tilt is just the centrifugal force automatically tilting the train.
The first one is very comfortable. The second is probably what you rode -- it's pretty bad.
I'm slightly suspectible to motion sickness (e.g. "normal" trains are fine, but sitting in the back seat of a car or in a bus can be a bit of a problem, especially when trying to read something).
When I was on a tilting train once (maybe about 10 years ago? AFAIK they are no longer in use) the motion sickness kicked in pretty hard.
PS: Interestingly, a tilted track (which seems to be quite usual now on newly built high speed tracks) doesn't affect me at all. I guess it was the general "wobbliness" of the tilt train.