Sort of a basic hotel that is off strip - a bit older of an offering with a smaller casino layout that is pretty easy to navigate through
Restaurants in the hotel are pretty basic, there are 2 different Starbucks to keep traffic to a minimum - I have not stayed here, but I am here once a year for the national go-kart race that is in the parking lot each year -- which will be changing to a different location in 2015...
The main attraction for the Rio is the buffet which gets very crowded when there are larger conventions or events going on at the casino - to which I have not been impressed with the food all that much. The Casino can get smokey and is probably not the best place for kids
All in all - a cheaper off strip hotel probably one of the few originals that are left from the early 90's that came at the time right before the strip expanded past the mafia ran casinos that were torn down for what is there today.