This is probably one of my favorite airports (and I do a LOT of airports), mainly because as of this writing, it's still rather small (comparatively) and has a lot of amenities one might need. It moves people around easily, has a LOT of public transport and has free wi-fi all over the airport. There's also a post office and a 24-hour fitness there (for those who are there long enough to relax), as well as a full Wells Fargo Bank office.
Getting into and out of the airport is a very "no-muss, no-fuss" experience and their passenger pick up area is a real treat when you have to go collect guests coming in.
It's also great if you have a long layover (2 or more hours) because the Strip is so close that you could feasibly leave the airport and take a quick jaunt over to the Strip for a drink or a laugh and still come back and catch your plane without having to spend an arm and a leg OR panic that'll you'll miss your flight.
Happy Trails fellow travelers!