I would give B.A.R. four stars for the food and two stars for service. They have a nice selection of creative sliders. I have had the le croque and the pulled pork sliders and they were both excellent. B.A.R. has a great (but pricey) selection of beers and specialty mixed drinks. I would personally suggest the Bartini.
Where B.A.R. really misses the mark is service. If you are seated in the main bar area the servers pay pretty close attention to you. If you are seated in the front lounge area good luck getting anyone to help. Also, the servers tend to ignore you if you are only getting drinks and then the bartender will hassle you for not ordering through your server.
I would say come to B.A.R. if you plan on eating, but this is a poor (and expensive) choice if you are just wanting to grab a drink with a buddy.