Excellent Viet/New American fusion with a lovely outdoor space.

Another Gramercy all-star, I really like this place, you need a reservation or early arrival, sitting in the bar is always fun and the food is amazing!

Part of the Marlow restaurant group, Diner is one of the more casual / rustic options. The menu changes daily and is written out (most likely upside down by the wait staff) on your table or the back of a receipt. The only constant item is the burger, which to be honest, is one of the best in the neighborhood. If they have a breakfast sandwich for brunch, get that. The fried chicken sandwich (with dark meat) is also a favorite. They make scrambled egg dishes better than most. Dinner is solid all around (they crush a steak for two). Homemade ketchup and dijon mustard are on every table, so regardless of what you get, these two condiments are worth the visit. 

I came alone and walked up an unassuming flight of stairs to the second floor that opened onto a narrow hallway with a reception desk. Before arriving at the Room, I could already sense the rich smell of damp earth that permeated the space.

Coming back from from New Haven, we got off at Grand Central and he took me down one of the concourses to the place with the vaulted ceiling. He stood at one corner and I stood at another and we whispered into the walls, our voices drifting across to each other.