I finally tried F&B in Chelsea. I got a farm dog(I think it's smoked chicken and apple with corn remoulade) and a health dog(veggie dog with hummus). It was all pretty good, nice snap to the dog, even on the veggie one which is harder to achieve without burning the weiner.
It seems like there's too much going on with topping combos when the mustard there was so well spiced I was eating it on it's own off a fork. I don't see what the fuss is about this place being a bargain either. Ten bucks for two hotdogs and a lemonade is far from it to me.