If your flight is delayed and you have to hang out here.... bummer. Other than that it's just another airport. It is small and surprisingly because it's Las Vegas Baby! I mean you do expect much more of an entrance to Sin City. The decor is older from the seating to the restrooms.
Highlights: As soon as you arrive, there is a lovely little spirits store called the Liquor Library. I think this is a very convenient way to jump-start your time in Las Vegas. Also, the shuttle staff was very helpful. I got a shuttle round trip for $18. I'd call that a deal.
I've gone over the pros and cons. I think your experience is different depending on the time you arrive to Las Vegas. I was on an early AM flight and everyone was jovial and helpful. I left on a later PM flight and everyone seemed over it. Much like they didn't want to be there. Who can blame them? If you've had the pleasure of flying into or out of Atlanta Hartsfield, Charlotte Douglas or Orlando International, you are probably thinking WTF as soon as you touch down here.
But why complain? It's Las Vegas! Go have a great time that you'll barely recollect.