The hotel, overall, was nice, but not great or anything like the Venetian on The Strip. The Rio is located a few blocks off the strip, so it is a little inconvenient. However, they provide shuttles every 15 minutes or so to Harrah’s, so it really wasn't a problem for me.
My room at the Rio was nice, but could have used some cosmetic work, such as new carpeting. I found the staff to be very pleasant and encountered no negative issues during my stay. Compared to some of the other hotels in Vegas, the Rio felt a little too much like a glitzy casino hotel. They do have an interesting free show that is worth checking out.