Pretty good but a little redundant if you did boards and wards. Wouldn't do both unless you have spare time. You are better off doing questions IMHO.
A
I agree that secrets is pretty good. I actually have the Crush (which I have heard is the same material) and think it is way better for doing well on the boards. I think B and W makes a great last minute review. So much of the material in B and W you will know like the back of your hand after third year. Crush seems to have a lot more of the clinically relevant trivia that you vaguely remember but the boards loves to test. I would say get Secrets or Crush without looking back.