Wow - what is with all the hate.
So my recommendation is that if you have anything at all else to do, go do that, but if not, hey - the Siren's are still fun for free.
Our kids loved the pirate show when we took them on our last trip, although they weren't there this time. They watch the video we took of it all the time and still love it. So much that their biggest request this trip was that we get a tape of the boy's ship this time (that side is much more boring - all the action is on the girl's ship).
Ok, for the real review....it's okay.
The girls are dressed in outfits that are more covering than bikinis, but not much. The boys are topless. The soundtrack is played over the speakers and lip synced. The dancing is fun, the girls and guys seem to have fun during the show. The lyrics are cheesy and have double meanings.....Guys: "Ahoy there"....Girls: "Who you calling a "hoy". But they are good for a laugh. Goes right over the kids heads.
I think the show is fine and fun for families, but if you are worried they may see a girl with a bikini on, then don't go - and I would question why you are in Vegas with them anyways if that is your fear.