I thought it was a great way to review some of the tricky physics concepts, but it was probably an overkill.
Not that it wasn't useful, but the truth is that very few problems like that actually show up on the real MCAT (at least mine).
In other words, yes, it probably helped me with that type of questions, but I don't think there are too many of those.
On the other hand, I think I recall it being one of the cheaper books (I may be wrong), so why not? 😀
Either way, good luck. S.