My family visited Texas from NJ primarily so that my wife could visit Magnolia in Waco (she's a big Chip and Joanna Gaines fan). We ended up in Dallas for a few days, and I booked this tour, as my wife is also a MASSIVE JFK/history buff. Bottom line: this was, by FAR, her favorite part of our trip.
The tour starts off on the infamous "grassy knoll" where you get to visualize what happened. You then get into a van and drive the entire route Oswald took that day, all the way up to the point where he was captured by police. You then head back to the museum where you leave the tour guide and do a self-guided audio tour of the "6th flloor."
To give you an idea of how great this was: my 7 year-old daughter usually could care less on pretty much any historical tour we take the kids on. On this one? She memorized and was consumed by pretty much every fact, and she listened with rapt attention to every single word of the audio tour in the museum.
Definitely do this if you're interested in history and JFK.