Circus Circus used to be a pretty good place even for adults. I think that since they're the only place in Vegas that caters to families now, they have pretty much given up on anything else. The Pink Pony restaurant is gone and their poker room almost never has more than 1 table playing a limit game.

If you have kids the circus acts and the carnival midway upstairs are still the best thing in Las Vegas for the kids. And of course, they still have the amusement park which I haven't seen in years but I'm sure it's fun for the kids.

So if you don't have kids you might want to skip Circus Circus.