I live half a mile away from Drink, and I think its the nicest bar/restaurant in the area. Its clean, decorated nicely, plays jazz, is dimly lit, has a nice waitstaff, and the food has been consistently good and reasonably priced every time I visit. Whenever someone wants to have a casual dinner or go to a bar some place by me, I pick Drink or else I end up in Tremont.
I especially like their hummus (its better than most hummus I've had in my life, and that's A LOT of hummus), and their Bulgogi burger.
Also, Theresa is a really nice server who is careful to remember your name and take good care of you.