I recently made a team based off of Gravity, a great field effect that was introduced in 4th Gen. It has really useful effects such as ignoring Levitate and the flying type of opponents (EQ hits everything) and making any move with 60 or more accuracy always hit. Still, I haven't seen a single other team that uses Gravity in 5th Gen play. So I would like to know...
How useful is Gravity in the 5th Gen metagame?
Is it worth it to set up Gravity or build a team around it?
What are some good ways to make full use of Gravity?
Personally, I think the move is far from useless, but is this move largely ignored because it's not useful, or because it's not well known?