The retro upscale diner vibe is usually a nod for the long record in the cafe, which was restored and re-opened in 2013 by Joel Tompkins and Toby Cecchini, a pair of serious foodies who needed to convey tasty glory into the Room. But the headliner at this cozy Brooklyn eatery isn't the décor; it is the burger.The food merchandise are supremely del