I got my free nights
In August I received a post card, not a phone call, offering me two free nights plus $75. to be used for food at any of their restaurants from SLS in Las Vegas. So I called them up and asked "what's the catch? They said there is no catch we just want people to try out our new hotel. It is a promotion so that you can tell your friends about the hotel. (This used to be the Sahara and is at the very end of the strip). So my husband and I went, we got our two free nights and our $75 as soon as we arrived. They waived their "resort fee" for us. While there, we took the monorail up and down the strip and we had a fun couple of days.
It is not our style, a bit too trendy, but it was a nice experience.
Since we live in Los Angeles, it was an easy trip for us.