Unfortunately for me ... I have discovered that I need to be able to use it and use it effectively.
I have probably spent more time practicing and recording to a metro-gnome than some people on this forum have been alive. If I record a drum track to a click and then everybody else plays to the drum track I can guarantee you that the resulting composition will be rock solid ... no A.S. necessary.
BUT, if I am adding tracks to a piece where all of the other musicians have already recorded to a click or midi drums (essentially adding the live drums much further on down in the recording process) the then I become the secondary timekeeper and not the primary and it is perceptible.
Quantizing a drum track is painfully tedious and time consuming, the software is not as rock solid and predictable as I would like and it is essentially a pain in the a$$ … other than that, it is an amazing production tool.