My hubby had a great time, although it was quite a short ride. For $20 in Vegas, though, it was a great deal!
When we went to purchase his ticket and the counter lady found out I would not also be taking the flight, she stated (instead of asking) "Why" and gave me a kind of snotty look. When I smoothed down my dress to reveal my 8 month baby-belly she became quite embarassed but not so apologetic. I had no hard feelings toward her. I hide preggo so well it's not her faul (I guess).
Anyway, for $20 you can't do much better. I suggest you pay the extra $5 and take the flight at night. Fremont is nothing to see during the day.