I stayed at SLS on my recent trip to Las Vegas. SLS has a monorail stop, so we frequently used the monorail to go to different hotels/attractions. I expected the monorail to be packed but it wasn't surprisingly. Using the monorail came in handy for us. It was a smooth ride,clean, and air conditioned. The trains ran every few minutes. The monorail didn't go to every place on the strip but it stopped at some popular places like MGM & Linq. Prices were reasonable for 2-3 day passes (unlimited use). I will definitely use Las Vegas Monorail every time I plan a trip to Vegas.