I always stay on the Strip but i may stay at RIO in May comped. I was planning on Bally's but only 3 of the 5 nights are comped as of now. As a regular at Bally's i may like the pool better at RIO, apparently RIO has mini fridges, the rooms supposedly 600 sq.ft, and some other nice things. I would plan to spend most of my evenings at Bally's, Paris, and Planet Hollywood, then return to RIO by 11pm and then spend about 2 hrs gambling at RIO before heading up to my room. I won't have a car, but is the Shuttle fairly reliable around 10/11PM? Supposedly it runs from 10am to 12am weekdays. The rooms are comped in May and have never stayed there, but my only concern is the Shuttle. Is the Shuttle big enough to hold a fair amount of people? If you have a RIO room key and want to get back to the Hotel after 10pm, is it first come first serve, or will they consider someone like myself who is slightly disabled?