We have been visiting Las Vegas at least once every year since 1998 and we still go back every visit to the Rio. Their free show in the sky is worth an admission ticket. It is fun and entertaining. The Rio used to have the best buffet in Las Vegas, but sadly, I never go there anymore; overpriced and overcrowded. But some of the other restaurants make up for the shortcomings! Excellent. And the view from the restaurant and lounge on the 40th floor is flat spectacular, worth photographing!
I highly recommend at least a visit to this convenient Casino when in Las Vegas!