From my point of view mumbai is like a king n gateway is the crown of mumbai.
we all knw there is many tpurist places in mumbai.but gateway is on top list in that all tourist places.
because it such an awsome place.
from gateway we can enjoy sea show.
but there is no special security .due to this m not able to say anything about safety.
but in that location there is a best service of hotels / restaurant.
so if we ignore point of security other things are best at gateway.
it is a heart of mumbai.so every mumbaikar like this spot.