I say yes, because even though I have never read a Harry Potter book, seen a Harry Potter movie, or been to Harry Potterville (LOL Kevin!) I still know what Gringotts is, ad have seen videos of this immersive, awesome experience.
Yes, if nothing else, for the amazing experience of going through the queue! My son (10) and I enjoy the ride very much, and we appreciate that the ride includes us both, and many age groups (while still feeling thrilling).
Yes, an absolute blast. Love all the action and effects. Have to do it twice at least any day in the park. I swore it felt like Voldemort was really standing in front of me when sitting in the front right hand side.