Executive Star also offers shuttle transportation and this is what we used. We heard that taking the shuttles were way cheaper than taking a taxi from the airport to your Vegas hotel. Okay, we'll try it. It's $6 one way, per person. They give you an option to buy a round trip but we didn't (more on that later). There was a sign inside the shuttle that said the price doesn't include tip for the driver so for two people, the total came to be $14.
First you line up to buy your shuttle tokens, then you line up again and a designated worker tries to figure out which shuttle you get on depending on where your hotel is. This took about 10 minutes. After we got on the shuttle, the driver wasted a little more time by passing out an advertisement magazine to all the riders. Then we were on our way. Good thing our destination was one of the firsts. The whole process had taken about a half an hour.
We had a brunch resveration at 11am so we kept looking at our watches. We cut it close! If we were one of the later hotels, we definitely would have been late. If you have three people, just split a taxi. It'll actually be around the same price inluding tip but you'll get there faster. If you're with 4+ DEFINITELY take a taxi instead. You'll save money.
We didn't take the shuttle back to the airport because we read about some bad experiences with shuttles in general on how they HAVE to pick you up way earlier than needed so they could maximize their time getting other customers. We took a taxi back to the airport and it was just a few dollars more but got there exactly at the time we wanted.