Okay, full disclosure time: The day we went it was about 98 degrees. I have no doubt this plays heavily into my overall review.
First of all if it is going to be hot the day you come, bring water AND AN UMBRELLA. There is SOME shade, but not much.
The tour guides are tremendously friendly and happy to answer any questions that you have. If you are interested in the Neon history of Las Vegas, this is the place to see the past.
I do wish they had some photographs or something to allow you to see the signs in their original glory. While I'm sure this is not possible for EVERYTHING here, famous ones like The Desert Inn or Sassy Sally surely they could do. At some point there is going to be a "Visitors Center", so hopefully this will have something like that.
By all means I absolutely recommend seeing it if you can, but I'm not kidding about the heat. My poor iPhone kept bringing up the Temperature Warning as I was trying to take pictures. But it was a wonderful opportunity to see these signs.