One of my fav places to get a very nice crafted cocktail in Vegas.
The bartenders are very knowledgable and they don't have the snooty attitude that a lot of other places tend to exude.
Years ago Misti Y. had suggested this place and we have been a fan ever since.
We always come here prior to dinner at Milos, shows and other occasions. We sit up at the bar and get a better experience than Chandelier Bar, not sure why but it's happen every time.
Now that Clique (revamp from prior hotspot) is packed all the time, swing by Vesper, you will have a great experience in this hidden gem.