Just go for the view.
Right after a work conference at the Mandalay, my husband and I were aimlessly wondering the casino floor when one of the promoters came up to us. I casually began to walk off until 'best view of the Strip' perked my ears. It was nearing sunset, and why not? We didn't have anything to do!
They have an amazing view, and at like 5-6pm it was empty. We got one of the signature cocktails - which tasted OK in terms of craft cocktails, but definitely was full of alcohol so I guess you get what you were paying for (not watered down.) The atmosphere is really comfortable and the outdoor patio is wonderful.
I'll bookmark it as a stop, even if for the photos alone, for my trips to Vegas.