I would use this everytime I go to Vegas! It's worth waiting in line. I got Mystere tickets for $68 even! They were aisle seats too and really great seats in Zone 4 (row KK).
The way it works:
Stand in line outside their 4-5 locations and figure out what shows you want to see or places you want to eat. There are people who check on you when your in line so they will help you. They do run out of some tickets very quickly like Phantom of the Opera and Ka'. Luckily they had Mystere.
* TIP: Take the $2/per ticket off page from online. It's worth it.
* TIP: You can get VIP pass which means you get served first and the line is inside instead of outside. No matter if you have a VIP pass you still have to stand in a line but a short line inside. For $25 you get to be a VIP for 1 year there.
* TIP: If you get a ticket from them the second day you get a free VIP pass and you get additional $2 off your tickets. So you can use them 2 days in a row!
Also, they really are cheap because I stayed in Luxor and thought that I would get cheaper tickets for LUXOR shows from Luxor. But, Tix 4 tonight was cheaper for BODIES show by $8!!!
The lady who serviced us was very rude at most time but faked laughed and smiled once in a while. But, everyone else was good and very nice. They are all vocal employees.