we actually had 2 great experiences. who knew that in vegas...a city where you can get anything...there are no airport shuttles that accomodate residential areas...only hotels...as a result here are our stories..
Sent a limo to the airport to pick up someone- they upgraded us without charge and treated our guest with white gloves as it was her birthday.
Second time we called the night before to get a ride to the airport- driver fit 5 adults, 1 baby, a stroller and 6 suitcases- he still managed a smile and roses for the ladies.