You seem to be over-thinking it. You've been on pinside for 3 years, you know pinball. You've probably watched videos and such and studied up on this on your own. If you're asking random strangers what they think, you're going to get a mixed bag of replies that really won't help you.
Is it local? Can you drive over and play it first and then decide? Can you search for a different Stern Nascar that's local that you can play instead? I would do that if I were you. If you have fun, do the deal. If not, pass and look for something else.