Review for Grand Sierra Resort and Casino (GSR) Review For Grand Sierra Resort and Casino (GSR) Google User Nov 5 '16 at 17:16 Reserved a specific room and left a premium deposit. Upon check-in, they overbooked and didn't have a room. They "upgraded" us to another room; however, the A/C unit was programmed at 82 degrees and nobody at the Hotel had a clue how to override it. So we spent the evening in a Sauna. Staff was apathetic at best. They said they would have a new room for us the next morning. They didn't -- we checked out and will NEVER go back. View full site to comment or like