Living in Las Vegas and commuting through the airport I always forget how busy the McCarran gets. Overall for as busy as it gets I never find myself thinking things are going slow. I am usually in and out. The parking has changed over the years. Before they installed the short term parking system, you could find a meter that had some time in it and go pick up your friends without paying for parking. Now it's not too bad because they do give you a few minutes for free in case you have to park. Overall not a bad experience most of the time. Cheers!