Well worth the visit (and you really need two days to see everything - we spent 10 hrs and felt rushed and saw only about 75%). Even with the Disney-ified aspects (a few movie rides/experiences and kids activities), it still seems a lot like a museum experience. The artifacts are amazing (like standing under a Saturn V, seeing equipment from the American first space walk, and then walking on the original (relocated) launch tower footbridge that the Apollo 11 astronauts used).

The three astronaut memorials were a bit of an emotional to see in person - pieces of Apollo 1, Challenger, and Columbia as well as tributes to all those who have sacrificed their lives in this pursuit.