A gated community tends to have less crime since the egress, ingress is challenging. Its sort of like when a car thief goes car to car to check for one that's unlocked, then steals radios, etc. Its called the path to least resistance. You may get a discount on your home insurance depending on your state and community.
In a gated community there tends to be greater control over the aesthetics of a community. If you are a meticulous person then this is a good option for you. If you are a messy person then maybe not as the neighbors will rat you out. Homeowners also need to get architectural committee permission for home improvements which prevents your neighbors from bringing down house values.
I hope this helps.
Green Home Realty