We finally tried F&B (23rd b'tween 7-8th Aves)tonight, which has been highly touted as the Tiffany's of junk food in NYMagazine (have there been previous posts on this place? Couldn't find one).
We ordered three different kinds of hot dogs (tofu, regular pork, lamb), hot chocolate, fried onions and taters, and beignets.
The good news: the service couldn't have been nicer or more professional, the place was really clean, and 3 of us got stuffed for under $20. Thumbs up for the french-fried onion rings and sweet potato and regular fries. The tofu dog was better than the ones we get in the freezer case, the hot chocolate was the real thing and a major bargain at $1.75 when compared to a short (burnt) Starbucks coffee.
My beefs (sorry): $3-4 is a lot to pay for designer dogs no matter how gussied up they are with cucumber slices or feta cheese (which didn't really work on the lamb IMO). The beignets were soggy and real oily.
If we go back, we'd go on a summer night where an open door would be a relief, and we'd try the homemade lemonade and eat nothing but the onion rings.
Would love to hear other recommendations. Despite the minuses it's a really neat, fun little place.