Vespers- also known as evensong or the evening prayers
That's appropriate because based on my experience, if you're looking for a cool, sophisticated bar with an exceptional drink menu, then your prayers have been answered.
I spent a lot of time at this bar during a conference and always had a great time with friends, having great drinks (their beer menu is okay and that's all I drink) and enjoying the people watching. If you can get a table, I recommend that because the lovely waitresses are much nicer than the d-bag bartenders who must not realize that men pay a lot of the tabs because they'd rather chat up the beautiful girls than get a guy a drink. But the lame bros aside, the service is good.
This place also comes to mind James Bond.....as it recalls the name of a woman he cared for, Vesper Lynd. And it's kind of cool that at the other end of the hotel there's a dance club called Bond.
This place left me shaken and stirred....in a good way!