There's finally another way (besides Early Warning System) to pull ships from one region to defend another. And Acceleration Gate does this with style.
This common, inexpensive region is an expansionist player's dream. It allows a CEO to spread fewer ships across more regions while still maintaining the possibility of presenting a solid defense. This ability alone is easily worth the cost, but when the income and mineral value are taken into account, Acceleration Gate becomes a very potent location. As always, there are drawbacks.
Acceleration Gate is playable in home regions, but it's not at its best there. Income-wise, it is a weak location, potentially too weak to take up space as a limited card. While this limitation isn't in place in outer regions, there it runs the risk of every desirable location: it can be stolen by your opponent. Of course, this is in addition to the risk of destruction that all locations face from a multitude of cards.
All in all, Acceleration Gate represents the goals of the whole of The Exiled: it brings more strategic options to the table, while only slightly raising the power level.