I am a second year at Creighton... I have only flipped through some of the review books but I agree with the previous poster, most things seem to have been at least covered which hopefully will help with getting ready.
I heard last year that the pass rate was about 90%... hearsay but consistent among several sources. Granted, pass rate doesn't say how well people did, just that in general most passed. I think how you do is variable and reflects your own preparation more than your school.