It is what it is. Do you like museums? Are you interested in nuclear weapons and nuclear testing? Then come on down. It isn't very far from the stip and never very crowded. Depending on how fast you do museums it can take 1 to a few hours. There is a nice little gift shop as well and its a great way to take a break from the strip. Only downside is that you can't take pictures in the museum but still a great experience.