As a McCarran employee of more than 2 years now, & an air traveler of domestic & international airlines, I have given McCarran 3 stars. For being the airport of Vegas, & in comparison to other airports, LAS actually isn't ever too crowded or busy. The security lines aren't unreasonably slow. If they are, we all know what type of passenger to blame! Although there are rude TSAs here & there. But what other government employee is different? The selection of your airline can really make or break your experience. Many people get lost in this place. There's bars, resturants, & fast food selections. & how can you forget our slot machines? However, LAS doesn't get 5 stars from me for it's overall atmosphere. It's pretty gloomy in the main terminal & areas can get really messy. It needs updating on it's old airport looks. The place really isn't too clear of where you're suppose to go because of the somewhat confusing signs. One thing I also wish is that this place was more Vegas welcoming. But overall, the most important thing is that things run smooth around here. You can come an hour to an hour & a half before departure, & you can make it to your plane! Don't forget to look out for the many celebrities we run into.