"Scary in some places"
Federal Highway varies from mile to mile, but for the most part it is pretty ghetto. It is one street over from famous ocean blvd, so if you're looking for the tourist areas or the beach, then head over to ocean blvd instead. there are some nice areas of this road, but there are also parts that are dark with scary people looming around. There are several hotels on this street and also some restaurants, but it is not a street that I recommend walking down either by yourself or with family/friends.