I am the founder of a tech startup and a regular visitor to Vegas (50+ times). I was late booking my travel to this year's CES conference (January 2015), so had limited options for hotels on/near the strip. I've stayed at nearly all the hotels on the strip, but for this trip the best option from a cost and location standpoint seemed to be Rio. This was my first booking here. \n\nTotal nightmare. They didn't have my room ready, and finally instead of a Deluxe King room I was put into an older double bed room. It was 40 degrees in Vegas and the heater was broken in my room. I called Maintenence three times to no avail, and finally went down to the front desk to speak with a manager myself. The customer service rep, Joanna, was rude and unhelpful. She told me I would just have to sleep in the cold. The manager, William, said it was a hotel-wide problem, with no heat in any rooms. For $350/night that is unacceptable. He said he couldn't move me to any other room and offered me $30 for the inconvenience. $30?.... A credit for my stay would be more suitable. Aside from the maintenance and check-in issues, the demeanor and lack of professionalism from the staff was very upsetting. I have never seen that before here in Vegas, where hotels staffs' typical bend over backwards to ensure you have an incredible stay. \n\nI will not stay at the rio again and do not recommend it. Stay at MGM, Palms, or Mandalay Bay for the same price. Or pay more for the Wynn, Palazzo, Bellagio or Venetian.