FOOD - Their lamb is fantastic. Everything else was average or above average. I also loved their cocktails, but their lobster bisque was too thick and salty and their stuffed pepper was too plain. The only thing I didnt like about the place was their valentine days menu. Other than then, I was never really unhappy walking out of Le Mont.
SERVICE - Good service! Fast, nice and friendly.
AMBIANCE - very formal. The view is amazing. You should call earlier to reserve a table nearby the window. The whole place looks like 19th century and is very romantic. Its very quiet in there so probably not the best place for kids, but it is a really good place for couples, soon to be couples, families, or for big groups in special events.
OVERALL - Le Mont is probably one of the best restaurants amongst the ones on Mt. Washington(I've been to 5 restaurants on mt washington).