Didnt this precise question come up previously?
It is transparent.
Having driven a 1990 vintage Q45a which had an actually more advanced active suspension, the BMW system is really remarkably unobtrusive.
I've not slid the X5 around- I am guessing that a whole lot of stuff would kick in, and be noticeable...but in normal driving, even aggressive, you feel no 'discontinuities' as a driver
A